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  • 2201. Aartsen, M. G.
    et al.
    Ackermann, M.
    Adams, J.
    Aguilar, J. A.
    Ahlers, M.
    Ahrens, M.
    Altmann, D.
    Anderson, T.
    Arguelles, C.
    Arlen, T. C.
    Auffenberg, J.
    Bai, X.
    Barwick, S. W.
    Baum, V.
    Beatty, J. J.
    Tjus, J. Becker
    Becker, K. -H
    BenZvi, S.
    Berghaus, P.
    Berley, D.
    Bernardini, E.
    Bernhard, A.
    Besson, D. Z.
    Binder, G.
    Bindig, D.
    Bissok, M.
    Blaufuss, E.
    Blumenthal, J.
    Boersma, David J.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Bohm, C.
    Bos, F.
    Bose, D.
    Boeser, S.
    Botner, Olga
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Brayeur, L.
    Bretz, H. -P
    Brown, A. M.
    Casey, J.
    Casier, M.
    Cheung, E.
    Chirkin, D.
    Christov, A.
    Christy, B.
    Clark, K.
    Classen, L.
    Clevermann, F.
    Coenders, S.
    Cowen, D. F.
    Silva, A. H. Cruz
    Danninger, M.
    Daughhetee, J.
    Davis, J. C.
    Day, M.
    de Andre, J. P. A. M.
    De Clercq, C.
    De Ridder, S.
    Desiati, P.
    de Vries, K. D.
    de With, M.
    DeYoung, T.
    Diaz-Velez, J. C.
    Dunkman, M.
    Eagan, R.
    Eberhardt, B.
    Eichmann, B.
    Eisch, J.
    Euler, Sebastian
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Evenson, P. A.
    Fadiran, O.
    Fazely, A. R.
    Fedynitch, A.
    Feintzeig, J.
    Felde, J.
    Feusels, T.
    Filimonov, K.
    Finley, C.
    Fischer-Wasels, T.
    Flis, S.
    Franckowiak, A.
    Frantzen, K.
    Fuchs, T.
    Gaisser, T. K.
    Gallagher, J.
    Gerhardt, L.
    Gier, D.
    Gladstone, L.
    Gluesenkamp, T.
    Goldschmidt, A.
    Golup, G.
    Gonzalez, J. G.
    Goodman, J. A.
    Gora, D.
    Grandmont, D. T.
    Grant, D.
    Gretskov, P.
    Groh, J. C.
    Gross, A.
    Ha, C.
    Haack, C.
    Ismail, A. Haj
    Hallen, P.
    Hallgren, Allan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Halzen, F.
    Hanson, K.
    Hebecker, D.
    Heereman, D.
    Heinen, D.
    Helbing, K.
    Hellauer, R.
    Hellwig, D.
    Hickford, S.
    Hill, G. C.
    Hoffman, K. D.
    Hoffmann, R.
    Homeier, A.
    Hoshina, K.
    Huang, F.
    Huelsnitz, W.
    Hulth, P. O.
    Hultqvist, K.
    Hussain, S.
    Ishihara, A.
    Jacobi, E.
    Jacobsen, J.
    Jagielski, K.
    Japaridze, G. S.
    Jero, K.
    Jlelati, O.
    Jurkovic, M.
    Kaminsky, B.
    Kappes, A.
    Karg, T.
    Karle, A.
    Kauer, M.
    Kelley, J. L.
    Kheirandish, A.
    Kiryluk, J.
    Klaes, J.
    Klein, S. R.
    Koehne, J. -H
    Kohnen, G.
    Kolanoski, H.
    Koob, A.
    Koepke, L.
    Kopper, C.
    Kopper, S.
    Koskinen, D. J.
    Kowalski, M.
    Kriesten, A.
    Krings, K.
    Kroll, G.
    Kroll, M.
    Kunnen, J.
    Kurahashi, N.
    Kuwabara, T.
    Labare, M.
    Larsen, D. T.
    Larson, M. J.
    Lesiak-Bzdak, M.
    Leuermann, M.
    Leute, J.
    Luenemann, J.
    Macias, O.
    Madsen, J.
    Maggi, G.
    Maruyama, R.
    Mase, K.
    Matis, H. S.
    Maunu, R.
    McNally, F.
    Meagher, K.
    Medici, M.
    Meli, A.
    Meures, T.
    Miarecki, S.
    Middell, E.
    Middlemas, E.
    Milke, N.
    Miller, J.
    Mohrmann, L.
    Montaruli, T.
    Morse, R.
    Nahnhauer, R.
    Naumann, U.
    Niederhausen, H.
    Nowicki, S. C.
    Nygren, D. R.
    Obertacke, A.
    Odrowski, S.
    Olivas, A.
    Omairat, A.
    O'Murchadha, A.
    Palczewski, T.
    Paul, L.
    Penek, O.
    Pepper, J. A.
    Perez De Los Heros, Carlos
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Pfendner, C.
    Pieloth, D.
    Pinat, E.
    Posselt, J.
    Price, P. B.
    Przybylski, G. T.
    Puetz, J.
    Quinnan, M.
    Raedel, L.
    Rameez, M.
    Rawlins, K.
    Redl, P.
    Rees, I.
    Reimann, R.
    Resconi, E.
    Rhode, W.
    Richman, M.
    Riedel, B.
    Robertson, S.
    Rodrigues, J. P.
    Rongen, M.
    Rott, C.
    Ruhe, T.
    Ruzybayev, B.
    Ryckbosch, D.
    Saba, S. M.
    Sander, H. -G
    Sandroos, J.
    Santander, M.
    Sarkar, S.
    Schatto, K.
    Scheriau, F.
    Schmidt, T.
    Schmitz, M.
    Schoenen, S.
    Schoeneberg, S.
    Schoenwald, A.
    Schukraft, A.
    Schulte, L.
    Schulz, O.
    Seckel, D.
    Sestayo, Y.
    Seunarine, S.
    Shanidze, R.
    Sheremata, C.
    Smith, M. W. E.
    Soldin, D.
    Spiczak, G. M.
    Spiering, C.
    Stamatikos, M.
    Stanev, T.
    Stanisha, N. A.
    Stasik, A.
    Stezelberger, T.
    Stokstad, R. G.
    Stoessl, A.
    Strahler, E. A.
    Ström, Rickard
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Strotjohann, N. L.
    Sullivan, G. W.
    Taavola, Henric
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Taboada, I.
    Tamburro, A.
    Tepe, A.
    Ter-Antonyan, S.
    Terliuk, A.
    Tesic, G.
    Tilav, S.
    Toale, P. A.
    Tobin, M. N.
    Tosi, D.
    Tselengidou, M.
    Unger, E.
    Usner, M.
    Vallecorsa, S.
    van Eijndhoven, N.
    Vandenbroucke, J.
    van Santen, J.
    Vehring, M.
    Voge, M.
    Vraeghe, M.
    Walck, C.
    Wallraff, M.
    Weaver, Ch.
    Wellons, M.
    Wendt, C.
    Westerhoff, S.
    Whelan, B. J.
    Whitehorn, N.
    Wichary, C.
    Wiebe, K.
    Wiebusch, C. H.
    Williams, D. R.
    Wissing, H.
    Wolf, M.
    Wood, T. R.
    Woschnagg, K.
    Xu, D. L.
    Xu, X. W.
    Yanez, J. P.
    Yodh, G.
    Yoshida, S.
    Zarzhitsky, P.
    Ziemann, J.
    Zierke, S.
    Zoll, M.
    SEARCHES FOR EXTENDED AND POINT-LIKE NEUTRINO SOURCES WITH FOUR YEARS OF ICECUBE DATA2014In: Astrophysical Journal, ISSN 0004-637X, E-ISSN 1538-4357, Vol. 796, no 2, p. 109-Article in journal (Refereed)
    Abstract [en]

    We present results on searches for point-like sources of neutrinos using four years of IceCube data, including the first year of data from the completed 86 string detector. The total livetime of the combined data set is 1373 days. For an E-2 spectrum, the observed 90% C. L. flux upper limits are similar to 10(-12) TeV-1 cm(-2) s(-1) for energies between 1 TeV and 1 PeV in the northern sky and similar to 10(-11) TeV-1 cm(-2) s(-1) for energies between 100 TeV and 100 PeV in the southern sky. This represents a 40% improvement compared to previous publications, resulting from both the additional year of data and the introduction of improved reconstructions. In addition, we present the first results from an all-sky search for extended sources of neutrinos. We update the results of searches for neutrino emission from stacked catalogs of sources and test five new catalogs; two of Galactic supernova remnants and three of active galactic nuclei. In all cases, the data are compatible with the background-only hypothesis, and upper limits on the flux of muon neutrinos are reported for the sources considered.

  • 2202. Aartsen, M. G.
    et al.
    Ackermann, M.
    Adams, J.
    Aguilar, J. A.
    Ahlers, M.
    Ahrens, M.
    Altmann, D.
    Anderson, T.
    Arguelles, C.
    Arlen, T. C.
    Auffenberg, J.
    Bai, X.
    Barwick, S. W.
    Baum, V.
    Beatty, J. J.
    Tjus, J. Becker
    Becker, K. -H
    BenZvi, S.
    Berghaus, P.
    Berley, D.
    Bernardini, E.
    Bernhard, A.
    Besson, D. Z.
    Binder, G.
    Bindig, D.
    Bissok, M.
    Blaufuss, E.
    Blumenthal, J.
    Boersma, David J.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Bohm, C.
    Bos, F.
    Bose, D.
    Boeser, S.
    Botner, Olga
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Brayeur, L.
    Bretz, H. P.
    Brown, A. M.
    Casey, J.
    Casier, M.
    Cheung, E.
    Chirkin, D.
    Christov, A.
    Christy, B.
    Clark, K.
    Classen, L.
    Clevermann, F.
    Coenders, S.
    Cowen, D. F.
    Silva, A. H. Cruz
    Danninger, M.
    Daughhetee, J.
    Davis, J. C.
    Day, M.
    De Andre, J. P. A. M.
    DeClercq, C.
    De Ridder, S.
    Desiati, P.
    De Vries, K. D.
    Dewith, M.
    DeYoung, T.
    Diaz-Velez, J. C.
    Dunkman, M.
    Eagan, R.
    Eberhardt, B.
    Eichmann, B.
    Eisch, J.
    Euler, Sebastian
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Evenson, P. A.
    Fadiran, O.
    Fazely, A. R.
    Fedynitch, A.
    Feintzeig, J.
    Felde, J.
    Feusels, T.
    Filimonov, K.
    Finley, C.
    Fischer-Wasels, T.
    Flis, S.
    Franckowiak, A.
    Frantzen, K.
    Fuchs, T.
    Gaisser, T. K.
    Gaior, R.
    Gallagher, J.
    Gerhardt, L.
    Gier, D.
    Gladstone, L.
    Glusenkamp, T.
    Goldschmidt, A.
    Golup, G.
    Gonzalez, J. G.
    Goodman, J. A.
    Gora, D.
    Grant, D.
    Gretskov, P.
    Groh, J. C.
    Gro, A.
    Ha, C.
    Haack, C.
    Ismail, A. Haj
    Hallen, P.
    Hallgren, Allan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Halzen, F.
    Hanson, K.
    Hebecker, D.
    Heereman, D.
    Heinen, D.
    Helbing, K.
    Hellauer, R.
    Hellwig, D.
    Hickford, S.
    Hill, G. C.
    Hoffman, K. D.
    Hoffmann, R.
    Homeier, A.
    Hoshina, K.
    Huang, F.
    Huelsnitz, W.
    Hulth, P. O.
    Hultqvist, K.
    Hussain, S.
    Ishihara, A.
    Jacobi, E.
    Jacobsen, J.
    Jagielski, K.
    Japaridze, G. S.
    Jero, K.
    Jlelati, O.
    Jurkovic, M.
    Kaminsky, B.
    Kappes, A.
    Karg, T.
    Karle, A.
    Kauer, M.
    Keivani, A.
    Kelley, J. L.
    Kheirandish, A.
    Kiryluk, J.
    Klaes, J.
    Klein, S. R.
    Koehne, J. H.
    Kohnen, G.
    Kolanoski, H.
    Koob, A.
    Koepke, L.
    Kopper, C.
    Kopper, S.
    Koskinen, D. J.
    Kowalski, M.
    Kriesten, A.
    Krings, K.
    Kroll, G.
    Kroll, M.
    Kunnen, J.
    Kurahashi, N.
    Kuwabara, T.
    Labare, M.
    Larsen, D. T.
    Larson, M. J.
    Lesiak-Bzdak, M.
    Leuermann, M.
    Leute, J.
    Luenemann, J.
    Madsen, J.
    Maggi, G.
    Maruyama, R.
    Mase, K.
    Matis, H. S.
    Maunu, R.
    McNally, F.
    Meagher, K.
    Medici, M.
    Meli, A.
    Meures, T.
    Miarecki, S.
    Middell, E.
    Middlemas, E.
    Milke, N.
    Miller, J.
    Mohrmann, L.
    Montaruli, T.
    Morse, R.
    Nahnhauer, R.
    Naumann, U.
    Niederhausen, H.
    Nowicki, S. C.
    Nygren, D. R.
    Obertacke, A.
    Odrowski, S.
    Olivas, A.
    Omairat, A.
    O'Murchadha, A.
    Palczewski, T.
    Paul, L.
    Penek, Oe.
    Pepper, J. A.
    Perez De Los Heros, Carlos
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Pfendner, C.
    Pieloth, D.
    Pinat, E.
    Posselt, J.
    Price, P. B.
    Przybylski, G. T.
    Puetz, J.
    Quinnan, M.
    Raedel, L.
    Rameez, M.
    Rawlins, K.
    Redl, P.
    Rees, I.
    Reimann, R.
    Relich, M.
    Resconi, E.
    Rhode, W.
    Richman, M.
    Riedel, B.
    Robertson, S.
    Rodrigues, J. P.
    Rongen, M.
    Rott, C.
    Ruhe, T.
    Ruzybayev, B.
    Ryckbosch, D.
    Saba, S. M.
    Sander, H. -G
    Sandroos, J.
    Santander, M.
    Sarkar, S.
    Schatto, K.
    Scheriau, F.
    Schmidt, T.
    Schmitz, M.
    Schoenen, S.
    Schoeneberg, S.
    Schoenwald, A.
    Schukraft, A.
    Schulte, L.
    Schulz, O.
    Seckel, D.
    Sestayo, Y.
    Seunarine, S.
    Shanidze, R.
    Smith, M. W. E.
    Soldin, D.
    Spiczak, G. M.
    Spiering, C.
    Stamatikos, M.
    Stanev, T.
    Stanisha, N. A.
    Stasik, A.
    Stezelberger, T.
    Stokstad, R. G.
    Stoessl, A.
    Strahler, E. A.
    Ström, Rickard
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Strotjohann, N. L.
    Sullivan, G. W.
    Taavola, Henric
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Taboada, I.
    Tamburro, A.
    Tepe, A.
    Ter-Antonyan, S.
    Terliuk, A.
    Tesic, G.
    Tilav, S.
    Toale, P. A.
    Tobin, M. N.
    Tosi, D.
    Tselengidou, M.
    Unger, Eva
    Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Physical Chemistry.
    Usner, M.
    Vallecorsa, S.
    Van Eijndhoven, N.
    Vandenbroucke, J.
    Van Santen, J.
    Vehring, M.
    Voge, M.
    Vraeghe, M.
    Walck, C.
    Wallraff, M.
    Weaver, Ch.
    Wellons, M.
    Wendt, C.
    Westerhoff, S.
    Whelan, B. J.
    Whitehorn, N.
    Wichary, C.
    Wiebe, K.
    Wiebusch, C. H.
    Williams, D. R.
    Wissing, H.
    Wolf, M.
    Wood, T. R.
    Woschnagg, K.
    Xu, D. L.
    Xu, X. W.
    Yanez, J. P.
    Yodh, G.
    Yoshida, S.
    Zarzhitsky, P.
    Ziemann, J.
    Zierke, S.
    Zoll, M.
    Morik, K.
    Development of a general analysis and unfolding scheme and its application to measure the energy spectrum of atmospheric neutrinos with IceCube2015In: European Physical Journal C, ISSN 1434-6044, E-ISSN 1434-6052, Vol. 75, no 3, article id 116Article in journal (Refereed)
    Abstract [en]

    We present the development and application of a generic analysis scheme for the measurement of neutrino spectra with the IceCube detector. This scheme is based on regularized unfolding, preceded by an event selection which uses a Minimum Redundancy Maximum Relevance algorithm to select the relevant variables and a random forest for the classification of events. The analysis has been developed using IceCube data from the 59-string configuration of the detector. 27,771 neutrino candidates were detected in 346 days of livetime. A rejection of 99.9999 % of the atmospheric muon background is achieved. The energy spectrum of the atmospheric neutrino flux is obtained using the TRUEE unfolding program. The unfolded spectrum of atmospheric muon neutrinos covers an energy range from 100 GeV to 1 PeV. Compared to the previous measurement using the detector in the 40-string configuration, the analysis presented here, extends the upper end of the atmospheric neutrino spectrum by more than a factor of two, reaching an energy region that has not been previously accessed by spectral measurements.

  • 2203. Aartsen, M. G.
    et al.
    Ackermann, M.
    Adams, J.
    Aguilar, J. A.
    Ahlers, M.
    Ahrens, M.
    Altmann, D.
    Anderson, T.
    Arguelles, C.
    Arlen, T. C.
    Auffenberg, J.
    Bai, X.
    Barwick, S. W.
    Baum, V.
    Beatty, J. J.
    Tjus, J. Becker
    Becker, K. -H
    BenZvi, S.
    Berghaus, P.
    Berley, D.
    Bernardini, E.
    Bernhard, A.
    Besson, D. Z.
    Binder, G.
    Bindig, D.
    Bissok, M.
    Blaufuss, E.
    Blumenthal, J.
    Boersma, David J.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Bohm, C.
    Bos, F.
    Bose, D.
    Boeser, S.
    Botner, Olga
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Brayeur, L.
    Bretz, H. -P
    Brown, A. M.
    Casey, J.
    Casier, M.
    Chirkin, D.
    Christov, A.
    Christy, B.
    Clark, K.
    Classen, L.
    Clevermann, F.
    Coenders, S.
    Cowen, D. F.
    Silva, A. H. Cruz
    Danninger, M.
    Daughhetee, J.
    Davis, J. C.
    Day, M.
    de Andre, J. P. A. M.
    De Clercq, C.
    De Ridder, S.
    Desiati, P.
    de Vries, K. D.
    de With, M.
    DeYoung, T.
    Diaz-Velez, J. C.
    Dunkman, M.
    Eagan, R.
    Eberhardt, B.
    Eichmann, B.
    Eisch, J.
    Euler, Sebastian
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Evenson, P. A.
    Fadiran, O.
    Fazely, A. R.
    Fedynitch, A.
    Feintzeig, J.
    Felde, J.
    Feusels, T.
    Filimonov, K.
    Finley, C.
    Fischer-Wasels, T.
    Flis, S.
    Franckowiak, A.
    Frantzen, K.
    Fuchs, T.
    Gaisser, T. K.
    Gallagher, J.
    Gerhardt, L.
    Gier, D.
    Gladstone, L.
    Gluesenkamp, T.
    Goldschmidt, A.
    Golup, G.
    Gonzalez, J. G.
    Goodman, J. A.
    Gora, D.
    Grandmont, D. T.
    Grant, D.
    Gretskov, P.
    Groh, J. C.
    Gross, A.
    Ha, C.
    Haack, C.
    Ismail, A. Haj
    Hallen, P.
    Hallgren, Allan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Halzen, F.
    Hanson, K.
    Hebecker, D.
    Heereman, D.
    Heinen, D.
    Helbing, K.
    Hellauer, R.
    Hellwig, D.
    Hickford, S.
    Hill, G. C.
    Hoffman, K. D.
    Hoffmann, R.
    Homeier, A.
    Hoshina, K.
    Huang, F.
    Huelsnitz, W.
    Hulth, P. O.
    Hultqvist, K.
    Hussain, S.
    Ishihara, A.
    Jacobi, E.
    Jacobsen, J.
    Jagielski, K.
    Japaridze, G. S.
    Jero, K.
    Jlelati, O.
    Jurkovic, M.
    Kaminsky, B.
    Kappes, A.
    Karg, T.
    Karle, A.
    Kauer, M.
    Kelley, J. L.
    Kheirandish, A.
    Kiryluk, J.
    Klaes, J.
    Klein, S. R.
    Koehne, J. -H
    Kohnen, G.
    Kolanoski, H.
    Koob, A.
    Koepke, L.
    Kopper, C.
    Kopper, S.
    Koskinen, D. J.
    Kowalski, M.
    Kriesten, A.
    Krings, K.
    Kroll, G.
    Kroll, M.
    Kunnen, J.
    Kurahashi, N.
    Kuwabara, T.
    Labare, M.
    Larsen, D. T.
    Larson, M. J.
    Lesiak-Bzdak, M.
    Leuermann, M.
    Leute, J.
    Luenemann, J.
    Macias, O.
    Madsen, J.
    Maggi, G.
    Maruyama, R.
    Mase, K.
    Matis, H. S.
    McNally, F.
    Meagher, K.
    Medici, M.
    Meli, A.
    Meures, T.
    Miarecki, S.
    Middell, E.
    Middlemas, E.
    Milke, N.
    Miller, J.
    Mohrmann, L.
    Montaruli, T.
    Morse, R.
    Nahnhauer, R.
    Naumann, U.
    Niederhausen, H.
    Nowicki, S. C.
    Nygren, D. R.
    Obertacke, A.
    Odrowski, S.
    Olivas, A.
    Omairat, A.
    O'Murchadha, A.
    Palczewski, T.
    Paul, L.
    Penek, Oe.
    Pepper, J. A.
    Heros, Carlos Perez de los
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Pfendner, C.
    Pieloth, D.
    Pinat, E.
    Posselt, J.
    Price, P. B.
    Przybylski, G. T.
    Puetz, J.
    Quinnan, M.
    Raedel, L.
    Rameez, M.
    Rawlins, K.
    Redl, P.
    Rees, I.
    Reimann, R.
    Resconi, E.
    Rhode, W.
    Richman, M.
    Riedel, B.
    Robertson, S.
    Rodrigues, J. P.
    Rongen, M.
    Rott, C.
    Ruhe, T.
    Ruzybayev, B.
    Ryckbosch, D.
    Saba, S. M.
    Sander, H. -G
    Sandroos, J.
    Santander, M.
    Sarkar, S.
    Schatto, K.
    Scheriau, F.
    Schmidt, T.
    Schmitz, M.
    Schoenen, S.
    Schoeneberg, S.
    Schnoewald, A.
    Schukraft, A.
    Schulte, L.
    Schulz, O.
    Seckel, D.
    Sestayo, Y.
    Seunarine, S.
    Shanidze, R.
    Sheremata, C.
    Smith, M. W. E.
    Soldin, D.
    Spiczak, G. M.
    Spiering, C.
    Stamatikos, M.
    Stanev, T.
    Stanisha, N. A.
    Stasik, A.
    Stezelberger, T.
    Stokstad, R. G.
    Stoessl, A.
    Strahler, E. A.
    Ström, Rickard
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Strotjohann, N. L.
    Sullivan, G. W.
    Taavola, Henric
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Taboada, I.
    Tamburro, A.
    Tepe, A.
    Ter-Antonyan, S.
    Terliuk, A.
    Tesic, G.
    Tilav, S.
    Toale, P. A.
    Tobin, M. N.
    Tosi, D.
    Tselengidou, M.
    Unger, E.
    Usner, M.
    Vallecorsa, S.
    van Eijndhoven, N.
    Vandenbroucke, J.
    van Santen, J.
    Vehring, M.
    Voge, M.
    Vraeghe, M.
    Walck, C.
    Wallraff, M.
    Weaver, Ch.
    Wellons, M.
    Wendt, C.
    Westerhoff, S.
    Whelan, B. J.
    Whitehorn, N.
    Wichary, C.
    Wiebe, K.
    Wiebusch, C. H.
    Williams, D. R.
    Wissing, H.
    Wolf, M.
    Wood, T. R.
    Woschnagg, K.
    Xu, D. L.
    Xu, X. W.
    Yanez, J. P.
    Yodh, G.
    Yoshida, S.
    Zarzhitsky, P.
    Ziemann, J.
    Zierke, S.
    Zoll, M.
    Multipole analysis of IceCube data to search for dark matter accumulated in the Galactic halo2015In: European Physical Journal C, ISSN 1434-6044, E-ISSN 1434-6052, Vol. 75, no 1, article id 20Article in journal (Refereed)
    Abstract [en]

    Dark matter which is bound in the Galactic halo might self-annihilate and produce a flux of stable final state particles, e. g. high energy neutrinos. These neutrinos can be detected with IceCube, a cubic-kilometer sized Cherenkov detector. Given IceCube's large field of view, a characteristic anisotropy of the additional neutrino flux is expected. In this paper we describe a multipole method to search for such a large-scale anisotropy in IceCube data. This method uses the expansion coefficients of a multipole expansion of neutrino arrival directions and incorporates signal-specific weights for each expansion coefficient. We apply the technique to a high-purity muon neutrino sample from the Northern Hemisphere. The final result is compatible with the null-hypothesis. As no signal was observed, we present limits on the self-annihilation cross-section averaged over the relative velocity distribution <sigma(A)v > down to 1.9x10(-23) cm(3) s(-1) for a dark matter particle mass of 700-1,000 GeV and direct annihilation into nu(nu) over bar. The resulting exclusion limits come close to exclusion limits from gamma-ray experiments, that focus on the outer Galactic halo, for high dark matter masses of a few TeV and hard annihilation channels.

  • 2204. Aartsen, M. G.
    et al.
    Ackermann, M.
    Adams, J.
    Aguilar, J. A.
    Ahlers, M.
    Ahrens, M.
    Altmann, D.
    Anderson, T.
    Arguelles, C.
    Arlen, T. C.
    Auffenberg, J.
    Bai, X.
    Barwick, S. W.
    Baum, V.
    Beatty, J. J.
    Tjus, J. Becker
    Becker, K. -H
    BenZvi, S.
    Berghaus, P.
    Berley, D.
    Bernardini, E.
    Bernhard, A.
    Besson, D. Z.
    Binder, G.
    Bindig, D.
    Bissok, M.
    Blaufuss, E.
    Blumenthal, J.
    Boersma, David J.
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Bohm, C.
    Bose, D.
    Boeser, S.
    Botner, Olga
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Brayeur, L.
    Bretz, H. -P
    Brown, A. M.
    Casey, J.
    Casier, M.
    Chirkin, D.
    Christov, A.
    Christy, B.
    Clark, K.
    Classen, L.
    Clevermann, F.
    Coenders, S.
    Cowen, D. F.
    Silva, A. H. Cruz
    Danninger, M.
    Daughhetee, J.
    Davis, J. C.
    Day, M.
    de Andre, J. P. A. M.
    De Clercq, C.
    De Ridder, S.
    Desiati, P.
    de Vries, K. D.
    de With, M.
    DeYoung, T.
    Diaz-Velez, J. C.
    Dunkman, M.
    Eagan, R.
    Eberhardt, B.
    Eichmann, B.
    Eisch, J.
    Euler, Sebastian
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Evenson, P. A.
    Fadiran, O.
    Fazely, A. R.
    Fedynitch, A.
    Feintzeig, J.
    Felde, J.
    Feusels, T.
    Filimonov, K.
    Finley, C.
    Fischer-Wasels, T.
    Flis, S.
    Franckowiak, A.
    Frantzen, K.
    Fuchs, T.
    Gaisser, T. K.
    Gallagher, J.
    Gerhardt, L.
    Gier, D.
    Gladstone, L.
    Gluesenkamp, T.
    Goldschmidt, A.
    Golup, G.
    Gonzalez, J. G.
    Goodman, J. A.
    Gora, D.
    Grandmont, D. T.
    Grant, D.
    Gretskov, P.
    Groh, J. C.
    Gross, A.
    Ha, C.
    Haack, C.
    Ismail, A. Haj
    Hallen, P.
    Hallgren, Allan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Halzen, F.
    Hanson, K.
    Hebecker, D.
    Heereman, D.
    Heinen, D.
    Helbing, K.
    Hellauer, R.
    Hellwig, D.
    Hickford, S.
    Hill, G. C.
    Hoffman, K. D.
    Hoffmann, R.
    Homeier, A.
    Hoshina, K.
    Huang, F.
    Huelsnitz, W.
    Hulth, P. O.
    Hultqvist, K.
    Hussain, S.
    Ishihara, A.
    Jacobi, E.
    Jacobsen, J.
    Jagielski, K.
    Japaridze, G. S.
    Jero, K.
    Jlelati, O.
    Jurkovic, M.
    Kaminsky, B.
    Kappes, A.
    Karg, T.
    Karle, A.
    Kauer, M.
    Kelley, J. L.
    Kheirandish, A.
    Kiryluk, J.
    Klaes, J.
    Klein, S. R.
    Koehne, J. -H
    Kohnen, G.
    Kolanoski, H.
    Koob, A.
    Koepke, L.
    Kopper, C.
    Kopper, S.
    Koskinen, D. J.
    Kowalski, M.
    Kriesten, A.
    Krings, K.
    Kroll, G.
    Kunnen, J.
    Kurahashi, N.
    Kuwabara, T.
    Labare, M.
    Larsen, D. T.
    Larson, M. J.
    Lesiak-Bzdak, M.
    Leuermann, M.
    Leute, J.
    Luenemann, J.
    Macias, O.
    Madsen, J.
    Maggi, G.
    Maruyama, R.
    Mase, K.
    Matis, H. S.
    McNally, F.
    Meagher, K.
    Meli, A.
    Meures, T.
    Miarecki, S.
    Middell, E.
    Middlemas, E.
    Milke, N.
    Miller, J.
    Mohrmann, L.
    Montaruli, T.
    Morse, R.
    Nahnhauer, R.
    Naumann, U.
    Niederhausen, H.
    Nowicki, S. C.
    Nygren, D. R.
    Obertacke, A.
    Odrowski, S.
    Olivas, A.
    Omairat, A.
    O'Murchadha, A.
    Palczewski, T.
    Paul, L.
    Penek, O.
    Pepper, J. A.
    Heros, Carlos Perez de los
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Pfendner, C.
    Pieloth, D.
    Pinat, E.
    Posselt, J.
    Price, P. B.
    Przybylski, G. T.
    Puetz, J.
    Quinnan, M.
    Raedel, L.
    Rameez, M.
    Rawlins, K.
    Redl, P.
    Rees, I.
    Reimann, R.
    Resconi, E.
    Rhode, W.
    Richman, M.
    Riedel, B.
    Robertson, S.
    Rodrigues, J. P.
    Rongen, M.
    Rott, C.
    Ruhe, T.
    Ruzybayev, B.
    Ryckbosch, D.
    Saba, S. M.
    Sander, H. -G
    Santander, M.
    Sarkar, S.
    Schatto, K.
    Scheriau, F.
    Schmidt, T.
    Schmitz, M.
    Schoenen, S.
    Schoeneberg, S.
    Schoenwald, A.
    Schukraft, A.
    Schulte, L.
    Schulz, O.
    Seckel, D.
    Sestayo, Y.
    Seunarine, S.
    Shanidze, R.
    Sheremata, C.
    Smith, M. W. E.
    Soldin, D.
    Spiczak, G. M.
    Spiering, C.
    Stamatikos, M.
    Stanev, T.
    Stanisha, N. A.
    Stasik, A.
    Stezelberger, T.
    Stokstad, R. G.
    Stoessl, A.
    Strahler, E. A.
    Ström, Rickard
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Strotjohann, N. L.
    Sullivan, G. W.
    Taavola, Henric
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Taboada, I.
    Tamburro, A.
    Tepe, A.
    Ter-Antonyan, S.
    Terliuk, A.
    Tesic, G.
    Tilav, S.
    Toale, P. A.
    Tobin, M. N.
    Tosi, D.
    Tselengidou, M.
    Unger, E.
    Usner, M.
    Vallecorsa, S.
    van Eijndhoven, N.
    Vandenbroucke, J.
    van Santen, J.
    Vehring, M.
    Voge, M.
    Vraeghe, M.
    Walck, C.
    Wallraff, M.
    Weaver, Ch.
    Wellons, M.
    Wendt, C.
    Westerhoff, S.
    Whelan, B. J.
    Whitehorn, N.
    Wichary, C.
    Wiebe, K.
    Wiebusch, C. H.
    Williams, D. R.
    Wissing, H.
    Wolf, M.
    Wood, T. R.
    Woschnagg, K.
    Xu, D. L.
    Xu, X. W.
    Yanez, J. P.
    Yodh, G.
    Yoshida, S.
    Zarzhitsky, P.
    Ziemann, J.
    Zierke, S.
    Zoll, M.
    Observation of High-Energy Astrophysical Neutrinos in Three Years of IceCube Data2014In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 113, no 10, p. 101101-Article in journal (Refereed)
    Abstract [en]

    A search for high-energy neutrinos interacting within the IceCube detector between 2010 and 2012 provided the first evidence for a high-energy neutrino flux of extraterrestrial origin. Results from an analysis using the same methods with a third year (2012-2013) of data from the complete IceCube detector are consistent with the previously reported astrophysical flux in the 100 TeV-PeV range at the level of 10(-8) GeV cm(-2) s(-1) sr(-1) per flavor and reject a purely atmospheric explanation for the combined three-year data at 5.7 sigma. The data are consistent with expectations for equal fluxes of all three neutrino flavors and with isotropic arrival directions, suggesting either numerous or spatially extended sources. The three-year data set, with a live time of 988 days, contains a total of 37 neutrino candidate events with deposited energies ranging from 30 to 2000 TeV. The 2000-TeV event is the highest-energy neutrino interaction ever observed.

  • 2205. Aartsen, M. G.
    et al.
    Ackermann, M.
    Adams, J.
    Aguilar, J. A.
    Ahlers, M.
    Ahrens, Maryon
    Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
    Altmann, D.
    Anderson, T.
    Arguelles, C.
    Arlen, T. C.
    Auffenberg, J.
    Bai, X.
    Barwick, S. W.
    Baum, V.
    Bay, R.
    Beatty, J. J.
    Tjus, J. Becker
    Becker, K. -H
    BenZvi, S.
    Berghaus, P.
    Berley, D.
    Bernardini, E.
    Bernhard, A.
    Besson, D. Z.
    Binder, G.
    Bindig, D.
    Bissok, M.
    Blaufuss, E.
    Blumenthal, J.
    Boersma, D. J.
    Bohm, Christian
    Stockholm University, Faculty of Science, Department of Physics.
    Bos, F.
    Bose, D.
    Boeser, S.
    Botner, O.
    Brayeur, L.
    Bretz, H. -P
    Brown, A. M.
    Brunner, J.
    Buzinsky, N.
    Casey, J.
    Casier, M.
    Cheung, E.
    Chirkin, D.
    Christov, A.
    Christy, B.
    Clark, K.
    Classen, L.
    Clevermann, F.
    Coenders, S.
    Cowen, D. F.
    Silva, A. H. Cruz
    Daughhetee, J.
    Davis, J. C.
    Day, M.
    de Andre, J. P. A. M.
    De Clercq, C.
    De Ridder, S.
    Desiati, P.
    de Vries, K. D.
    de With, M.
    De Young, T.
    Diaz-Velez, J. C.
    Dunkman, M.
    Eagan, R.
    Eberhardt, B.
    Eichmann, B.
    Eisch, J.
    Euler, S.
    Evenson, P. A.
    Fadiran, O.
    Fazely, A. R.
    Fedynitch, A.
    Feintzeig, J.
    Felde, J.
    Feusels, T.
    Filimonov, K.
    Finley, Chad
    Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
    Fischer-Wasels, T.
    Flis, Samuel
    Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
    Franckowiak, A.
    Frantzen, K.
    Fuchs, T.
    Gaisser, T. K.
    Gaior, R.
    Gallagher, J.
    Gerhardt, L.
    Gier, D.
    Gladstone, L.
    Gluesenkamp, T.
    Goldschmidt, A.
    Golup, G.
    Gonzalez, J. G.
    Goodman, J. A.
    Gora, D.
    Grant, D.
    Gretskov, P.
    Groh, J. C.
    Gross, A.
    Ha, C.
    Haack, C.
    Ismail, A. Haj
    Hallen, P.
    Hallgren, A.
    Halzen, F.
    Hanson, K.
    Hebecker, D.
    Heereman, D.
    Heinen, D.
    Helbing, K.
    Hellauer, R.
    Hellwig, D.
    Hickford, S.
    Hill, G. C.
    Hoffman, K. D.
    Hoffmann, R.
    Homeier, A.
    Hoshina, K.
    Huang, F.
    Huelsnitz, W.
    Hulth, Per Olof
    Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
    Hultqvist, Klas
    Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
    Hussain, S.
    Ishihara, A.
    Jacobi, E.
    Jacobsen, J.
    Jagielski, K.
    Japaridze, G. S.
    Jero, K.
    Jlelati, O.
    Jurkovic, M.
    Kaminsky, B.
    Kappes, A.
    Karg, T.
    Karle, A.
    Kauer, M.
    Keivani, A.
    Kelley, J. L.
    Kheirandish, A.
    Kiryluk, J.
    Klaes, J.
    Klein, S. R.
    Koehne, J. -H
    Kohnen, G.
    Kolanoski, H.
    Koob, A.
    Koepke, L.
    Kopper, C.
    Kopper, S.
    Koskinen, D. J.
    Kowalski, M.
    Kriesten, A.
    Krings, K.
    Kroll, G.
    Kroll, M.
    Kunnen, J.
    Kurahashi, N.
    Kuwabara, T.
    Labare, M.
    Lanfranchi, J. L.
    Larsen, D. T.
    Larson, M. J.
    Lesiak-Bzdak, M.
    Leuermann, M.
    Luenemann, J.
    Madsen, J.
    Maggi, G.
    Maruyama, R.
    Mase, K.
    Matis, H. S.
    Maunu, R.
    McNally, F.
    Meagher, K.
    Medici, M.
    Meli, A.
    Meures, T.
    Miarecki, S.
    Middell, E.
    Middlemas, E.
    Milke, N.
    Miller, J.
    Mohrmann, L.
    Montaruli, T.
    Morse, R.
    Nahnhauer, R.
    Naumann, U.
    Niederhausen, H.
    Nowicki, S. C.
    Nygren, D. R.
    Obertacke, A.
    Odrowski, S.
    Olivas, A.
    Omairat, A.
    O'Murchadha, A.
    Palczewski, T.
    Paul, L.
    Penek, Oe.
    Pepper, J. A.
    de los Heros, C. Perez
    Pfendner, C.
    Pieloth, D.
    Pinat, E.
    Posselt, J.
    Price, P. B.
    Przybylski, G. T.
    Puetz, J.
    Quinnan, M.
    Raedel, L.
    Rameez, M.
    Rawlins, K.
    Redl, P.
    Rees, I.
    Reimann, R.
    Relich, M.
    Resconi, E.
    Rhode, W.
    Richman, M.
    Riedel, B.
    Robertson, S.
    Rodrigues, J. P.
    Rongen, M.
    Rott, C.
    Ruhe, T.
    Ruzybayev, B.
    Ryckbosch, D.
    Saba, S. M.
    Sander, H. -G
    Sandroos, J.
    Santander, M.
    Sarkar, S.
    Schatto, K.
    Scheriau, F.
    Schmidt, T.
    Schmitz, M.
    Schoenen, S.
    Schoeneberg, S.
    Schoenwald, A.
    Schukraft, A.
    Schulte, L.
    Schulz, O.
    Seckel, D.
    Sestayo, Y.
    Seunarine, S.
    Shanidze, R.
    Smith, M. W. E.
    Soldin, D.
    Spiczak, G. M.
    Spiering, C.
    Stamatikos, M.
    Stanev, T.
    Stanisha, N. A.
    Stasik, A.
    Stezelberger, T.
    Stokstad, R. G.
    Stoessl, A.
    Strahler, E. A.
    Strom, R.
    Strotjohann, N. L.
    Sullivan, G. W.
    Taavola, H.
    Taboada, I.
    Tamburro, A.
    Tepe, A.
    Ter-Antonyan, S.
    Terliuk, A.
    Tesic, G.
    Tilav, S.
    Toale, P. A.
    Tobin, M. N.
    Tosi, D.
    Tselengidou, M.
    Unger, E.
    Usner, M.
    Vallecorsa, S.
    van Eijndhoven, N.
    Vandenbroucke, J.
    van Santen, J.
    Vehring, M.
    Voge, M.
    Vraeghe, M.
    Walck, Christian
    Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
    Wallraff, M.
    Weaver, Ch.
    Wellons, M.
    Wendt, C.
    Westerhoff, S.
    Whelan, B. J.
    Whitehorn, N.
    Wichary, C.
    Wiebe, K.
    Wiebusch, C. H.
    Williams, D. R.
    Wissing, H.
    Wolf, Martin
    Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
    Wood, T. R.
    Woschnagg, K.
    Xu, D. L.
    Xu, X. W.
    Yanez, J. P.
    Yodh, G.
    Yoshida, S.
    Zarzhitsky, P.
    Ziemann, J.
    Zierke, S.
    Zoll, Marcel
    Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
    Determining neutrino oscillation parameters from atmospheric muon neutrino disappearance with three years of IceCube DeepCore data2015In: Physical Review D, ISSN 1550-7998, E-ISSN 1550-2368, Vol. 91, no 7, article id 072004Article in journal (Refereed)
    Abstract [en]

    We present a measurement of neutrino oscillations via atmospheric muon neutrino disappearance with three years of data of the completed IceCube neutrino detector. DeepCore, a region of denser IceCube instrumentation, enables the detection and reconstruction of atmospheric muon neutrinos between 10 and 100 GeV, where a strong disappearance signal is expected. The IceCube detector volume surrounding DeepCore is used as a veto region to suppress the atmospheric muon background. Neutrino events are selected where the detected Cherenkov photons of the secondary particles minimally scatter, and the neutrino energy and arrival direction are reconstructed. Both variables are used to obtain the neutrino oscillation parameters from the data, with the best fit given by Delta m(32)(2) = 2.72(-0.20)(+0.19) x 10(-3) eV(2) and sin(2)theta(23) = 0.53(-0.12)(+0.09) (normal mass ordering assumed). The results are compatible, and comparable in precision, to those of dedicated oscillation experiments.

  • 2206. Aartsen, M. G.
    et al.
    Ackermann, M.
    Adams, J.
    Aguilar, J. A.
    Ahlers, M.
    Ahrens, Maryon
    Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
    Altmann, D.
    Anderson, T.
    Arguelles, C.
    Arlen, T. C.
    Auffenberg, J.
    Bai, X.
    Barwick, S. W.
    Baum, V.
    Beatty, J. J.
    Tjus, J. Becker
    Becker, K. -H
    BenZvi, S.
    Berghaus, P.
    Berley, D.
    Bernardini, E.
    Bernhard, A.
    Besson, D. Z.
    Binder, G.
    Bindig, D.
    Bissok, M.
    Blaufuss, E.
    Blumenthal, J.
    Boersma, D. J.
    Bohm, Christian
    Stockholm University, Faculty of Science, Department of Physics.
    Bos, F.
    Bose, D.
    Boeser, S.
    Botner, O.
    Brayeur, L.
    Bretz, H. -P
    Brown, A. M.
    Casey, J.
    Casier, M.
    Cheung, E.
    Chirkin, D.
    Christov, A.
    Christy, B.
    Clark, K.
    Classen, L.
    Cleverinann, F.
    Coenders, S.
    Cowen, D. F.
    Silva, A. H. Cruz
    Danninger, Matthias
    Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
    Daughhetee, J.
    Davis, J. C.
    Day, M.
    de Andre, J. P. A. M.
    De Clercq, C.
    De Ridder, S.
    Desiati, P.
    de Vries, K. D.
    de With, M.
    DeYoung, T.
    Diaz-Velez, J. C.
    Dunkman, M.
    Eagan, R.
    Eberhardt, B.
    Eichmann, B.
    Eisch, J.
    Euler, S.
    Evenson, P. A.
    Fadiran, O.
    Fazely, A. R.
    Fedynitch, A.
    Feintzeig, J.
    Felde, J.
    Feusels, T.
    Filimonov, K.
    Finley, Chad
    Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
    Fischer-Wasels, T.
    Flis, Samuel
    Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
    Franckowiak, A.
    Frantzen, K.
    Fuchs, T.
    Gaisser, T. K.
    Gaior, R.
    Gallagher, J.
    Gerhardt, L.
    Gier, D.
    Gladstone, L.
    Gluesenkamp, T.
    Goldschmidt, A.
    Golup, G.
    Gonzalez, J. G.
    Goodman, J. A.
    Gora, D.
    Grant, D.
    Gretskov, P.
    Groh, J. C.
    Gross, A.
    Ha, C.
    Haack, C.
    Ismail, A. Haj
    Hallen, P.
    Hallgren, A.
    Halzen, F.
    Hanson, K.
    Hebecker, D.
    Heereman, D.
    Heinen, D.
    Helbing, K.
    Hellauer, R.
    Hellwig, D.
    Hickford, S.
    Hill, G. C.
    Hoffman, K. D.
    Hoffmann, R.
    Homeier, A.
    Hoshina, K.
    Huang, F.
    Huelsnitz, W.
    Hulth, Per Olof
    Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
    Hultqvist, Klas
    Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
    Hussain, S.
    Ishihara, A.
    Jacobi, E.
    Jacobsen, J.
    Jagielski, K.
    Japaridze, G. S.
    Jero, K.
    Jlelati, O.
    Jurkovic, M.
    Kaminsky, B.
    Kappes, A.
    Karg, T.
    Karle, A.
    Kauer, M.
    Kelley, J. L.
    Kheirandish, A.
    Kiryluk, J.
    Klaes, J.
    Klein, S. R.
    Koehne, J. -H
    Kohnen, G.
    Kolanoski, H.
    Koob, A.
    Koepke, L.
    Kopper, C.
    Kopper, S.
    Koskinen, D. J.
    Kowalski, M.
    Kriesten, A.
    Krings, K.
    Kroll, G.
    Kroll, M.
    Kunnen, J.
    Kurahashi, N.
    Kuwabara, T.
    Labare, M.
    Larsen, D. T.
    Larson, M. J.
    Lesiak-Bzdak, M.
    Leuermann, M.
    Leute, J.
    Luenemann, J.
    Madsen, J.
    Maggi, G.
    Maruyama, R.
    Mase, K.
    Matis, H. S.
    Maunu, R.
    McNally, F.
    Meagher, K.
    Medici, M.
    Meli, A.
    Meures, T.
    Miarecki, S.
    Middell, E.
    Middlemas, E.
    Milke, N.
    Miller, J.
    Mohrmann, L.
    Montaruli, T.
    Morse, R.
    Nahnhauer, R.
    Naumann, U.
    Niederhausen, H.
    Nowicki, S. C.
    Nygren, D. R.
    Obertacke, A.
    Odrowski, S.
    Olivas, A.
    Omairat, A.
    O'Murchadha, A.
    Palczewski, T.
    Paul, L.
    Penek, Oe.
    Pepper, J. A.
    de los Heros, C. Perez
    Pfendner, C.
    Pieloth, D.
    Pinat, E.
    Posselt, J.
    Price, P. B.
    Przybylski, G. T.
    Puetz, J.
    Quinnan, M.
    Raedel, L.
    Rameez, M.
    Rawlins, K.
    Redl, P.
    Rees, I.
    Reimann, R.
    Relich, M.
    Resconi, E.
    Rhode, W.
    Richman, M.
    Riedel, B.
    Robertson, S.
    Rodrigues, Jp.
    Rongen, M.
    Rott, C.
    Ruhe, T.
    Ruzybayev, B.
    Ryckbosch, D.
    Saba, S. M.
    Sander, H. -G
    Sandroos, J.
    Santander, M.
    Sarkar, S.
    Schatto, K.
    Scheriau, F.
    Schmidt, T.
    Schmitz, M.
    Schoenen, S.
    Schoeneberg, S.
    Schoenwald, A.
    Schukraft, A.
    Schulte, L.
    Schulz, O.
    Seckel, D.
    Sestayo, Y.
    Seunarine, S.
    Shanidze, R.
    Smith, M. W. E.
    Soldin, D.
    Spiczak, G. M.
    Spiering, C.
    Stamatikos, M.
    Stanev, T.
    Stanisha, N. A.
    Stasik, A.
    Stezelberger, T.
    Stokstad, R. G.
    Stoessl, A.
    Strahler, E. A.
    Stroem, R.
    Strotjohann, N. L.
    Sullivan, G. W.
    Taavola, H.
    Taboada, I.
    Tamburro, A.
    Tepe, A.
    Ter-Antonyan, S.
    Terliuk, A.
    Tesic, G.
    Tilav, S.
    Toale, P. A.
    Tobin, M. N.
    Tosi, D.
    Tselengidou, M.
    Unger, E.
    Usner, M.
    Vallecorsa, S.
    van Eijndhoven, N.
    Vandenbroucke, J.
    van Santen, J.
    Vehring, M.
    Voge, M.
    Vraeghe, M.
    Walck, Christian
    Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
    Wallraff, M.
    Weaver, Ch.
    Wellons, M.
    Wendt, C.
    Westerhoff, S.
    Whelan, B. J.
    Whitehorn, N.
    Wichary, C.
    Wiebe, K.
    Wiebusch, C. H.
    Williams, D. R.
    Wissing, H.
    Wolf, Martin
    Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
    Wood, T. R.
    Woschnagg, K.
    Xu, D. L.
    Xu, X. W.
    Yanez, J. P.
    Yodh, G.
    Yoshida, S.
    Zarzhitsky, P.
    Ziemann, J.
    Zierke, S.
    Zoll, Marcel
    Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
    Searches for small-scale anisotropies from neutrino point sources with three years of IceCube data2015In: Astroparticle physics, ISSN 0927-6505, E-ISSN 1873-2852, Vol. 66, p. 39-52Article in journal (Refereed)
    Abstract [en]

    Recently, IceCube found evidence for a diffuse signal of astrophysical neutrinos in an energy range of similar to 60 TeV to the PeV-scale [1]. The origin of those events, being a key to understanding the origin of cosmic rays, is still an unsolved question. So far, analyses have not succeeded to resolve the diffuse signal into point-like sources. Searches including a maximum-likelihood-ratio test, based on the reconstructed directions and energies of the detected down- and up-going neutrino candidates, were also performed on IceCube data leading to the exclusion of bright point sources. In this paper, we present two methods to search for faint neutrino point sources in three years of IceCube data, taken between 2008 and 2011. The first method is an autocorrelation test, applied separately to the northern and southern sky. The second method is a multipole analysis, which expands the measured data in the northern hemisphere into spherical harmonics and uses the resulting expansion coefficients to separate signal from background. With both methods, the results are consistent with the background expectation with a slightly more sparse spatial distribution, corresponding to an underfluctuation. Depending on the assumed number of sources, the resulting upper limit on the flux per source in the northern hemisphere for an E-2 energy spectrum ranges from similar to 1.5. 10(-8) GeV/cm(2) s(-1), in the case of one assumed source, to similar to 4. 10(-10) GeV/cm(2) s(-1), in the case of 3500 assumed sources.

  • 2207.
    Aartsen, M. G.
    et al.
    Univ Adelaide, Dept Phys, Adelaide, SA, Australia.
    Collaboration, IceCube
    Hill, G. C.
    Univ Adelaide, Dept Phys, Adelaide, SA, Australia.
    Kyriacou, A.
    Univ Adelaide, Dept Phys, Adelaide, SA, Australia.
    Robertson, S.
    Univ Adelaide, Dept Phys, Adelaide, SA, Australia.
    Wallace, A.
    Univ Adelaide, Dept Phys, Adelaide, SA, Australia.
    Whelan, B. J.
    Univ Adelaide, Dept Phys, Adelaide, SA, Australia.
    Ackermann, M.
    DESY, Zeuthen, Germany.
    Bernardini, E.
    DESY, Zeuthen, Germany.
    Blot, S.
    DESY, Zeuthen, Germany.
    Bradascio, F.
    DESY, Zeuthen, Germany.
    Bretz, H. -P
    Brostean-Kaiser, J.
    DESY, Zeuthen, Germany.
    Franckowiak, A.
    DESY, Zeuthen, Germany.
    Jacobi, E.
    DESY, Zeuthen, Germany.
    Karg, T.
    DESY, Zeuthen, Germany.
    Kintscher, T.
    DESY, Zeuthen, Germany.
    Kunwar, S.
    DESY, Zeuthen, Germany.
    Nahnhauer, R.
    DESY, Zeuthen, Germany.
    Satalecka, K.
    DESY, Zeuthen, Germany.
    Spiering, C.
    DESY, Zeuthen, Germany.
    Stachurska, J.
    DESY, Zeuthen, Germany.
    Stasik, A.
    DESY, Zeuthen, Germany.
    Strotjohann, N. L.
    DESY, Zeuthen, Germany.
    Terliuk, A.
    DESY, Zeuthen, Germany.
    Usner, M.
    DESY, Zeuthen, Germany.
    van Santen, J.
    DESY, Zeuthen, Germany.
    Adams, J.
    Univ Canterbury, Dept Phys & Astron, Christchurch, New Zealand.
    Bagherpour, H.
    Univ Canterbury, Dept Phys & Astron, Christchurch, New Zealand.
    Aguilar, J. A.
    Univ Libre Bruxelles, Sci Fac, Brussels, Belgium.
    Ansseau, I.
    Univ Libre Bruxelles, Sci Fac, Brussels, Belgium.
    Heereman, D.
    Univ Libre Bruxelles, Sci Fac, Brussels, Belgium.
    Meagher, K.
    Univ Libre Bruxelles, Sci Fac, Brussels, Belgium.
    Meures, T.
    Univ Libre Bruxelles, Sci Fac, Brussels, Belgium.
    O'Murchadha, A.
    Univ Libre Bruxelles, Sci Fac, Brussels, Belgium.
    Pinat, E.
    Univ Libre Bruxelles, Sci Fac, Brussels, Belgium.
    Raab, C.
    Univ Libre Bruxelles, Sci Fac, Brussels, Belgium.
    Ahlers, M.
    Univ Copenhagen, Niels Bohr Inst, Copenhagen, Denmark.
    Bourbeau, E.
    Univ Copenhagen, Niels Bohr Inst, Copenhagen, Denmark.
    Koskinen, D. J.
    Univ Copenhagen, Niels Bohr Inst, Copenhagen, Denmark.
    Larson, M. J.
    Univ Copenhagen, Niels Bohr Inst, Copenhagen, Denmark.
    Medici, M.
    Univ Copenhagen, Niels Bohr Inst, Copenhagen, Denmark.
    Rameez, M.
    Univ Copenhagen, Niels Bohr Inst, Copenhagen, Denmark.
    Stuttard, T.
    Univ Copenhagen, Niels Bohr Inst, Copenhagen, Denmark.
    Ahrens, M.
    Stockholm Univ, Oskar Klein Ctr, Stockholm, Sweden;Stockholm Univ, Dept Phys, Stockholm, Sweden.
    Bohm, C.
    Stockholm Univ, Oskar Klein Ctr, Stockholm, Sweden;Stockholm Univ, Dept Phys, Stockholm, Sweden.
    Dumm, J. P.
    Stockholm Univ, Oskar Klein Ctr, Stockholm, Sweden;Stockholm Univ, Dept Phys, Stockholm, Sweden.
    Finley, C.
    Stockholm Univ, Oskar Klein Ctr, Stockholm, Sweden;Stockholm Univ, Dept Phys, Stockholm, Sweden.
    Flis, S.
    Stockholm Univ, Oskar Klein Ctr, Stockholm, Sweden;Stockholm Univ, Dept Phys, Stockholm, Sweden.
    Hultqvist, K.
    Stockholm Univ, Oskar Klein Ctr, Stockholm, Sweden;Stockholm Univ, Dept Phys, Stockholm, Sweden.
    Walck, C.
    Stockholm Univ, Oskar Klein Ctr, Stockholm, Sweden;Stockholm Univ, Dept Phys, Stockholm, Sweden.
    Zoll, M.
    Stockholm Univ, Oskar Klein Ctr, Stockholm, Sweden;Stockholm Univ, Dept Phys, Stockholm, Sweden.
    Al Samarai, I.
    Univ Geneva, Dept Phys Nucl & Corpusculaire, Geneva, Switzerland.
    Bron, S.
    Univ Geneva, Dept Phys Nucl & Corpusculaire, Geneva, Switzerland.
    Carver, T.
    Univ Geneva, Dept Phys Nucl & Corpusculaire, Geneva, Switzerland.
    Christov, A.
    Univ Geneva, Dept Phys Nucl & Corpusculaire, Geneva, Switzerland.
    Montaruli, T.
    Univ Geneva, Dept Phys Nucl & Corpusculaire, Geneva, Switzerland.
    Altmann, D.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erlangen, Germany.
    Anton, G.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erlangen, Germany.
    Gluesenkamp, T.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erlangen, Germany.
    Katz, U.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erlangen, Germany.
    Kittler, T.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erlangen, Germany.
    Tselengidou, M.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, Erlangen, Germany.
    Andeen, K.
    Marquette Univ, Dept Phys, Milwaukee, WI 53233 USA.
    Plum, M.
    Marquette Univ, Dept Phys, Milwaukee, WI 53233 USA.
    Anderson, T.
    Penn State Univ, Dept Phys, 104 Davey Lab, University Pk, PA 16802 USA.
    DeLaunay, J. J.
    Penn State Univ, Dept Phys, 104 Davey Lab, University Pk, PA 16802 USA.
    Dunkman, M.
    Penn State Univ, Dept Phys, 104 Davey Lab, University Pk, PA 16802 USA.
    Eller, P.
    Penn State Univ, Dept Phys, 104 Davey Lab, University Pk, PA 16802 USA.
    Huang, F.
    Penn State Univ, Dept Phys, 104 Davey Lab, University Pk, PA 16802 USA.
    Keivani, A.
    Penn State Univ, Dept Phys, 104 Davey Lab, University Pk, PA 16802 USA.
    Lanfranchi, J. L.
    Penn State Univ, Dept Phys, 104 Davey Lab, University Pk, PA 16802 USA.
    Pankova, D. V.
    Penn State Univ, Dept Phys, 104 Davey Lab, University Pk, PA 16802 USA.
    Tesic, G.
    Penn State Univ, Dept Phys, 104 Davey Lab, University Pk, PA 16802 USA.
    Turley, C. F.
    Penn State Univ, Dept Phys, 104 Davey Lab, University Pk, PA 16802 USA.
    Weiss, M. J.
    Penn State Univ, Dept Phys, 104 Davey Lab, University Pk, PA 16802 USA.
    Arguelles, C.
    MIT, Dept Phys, Cambridge, MA 02139 USA.
    Axani, S.
    MIT, Dept Phys, Cambridge, MA 02139 USA.
    Collin, G. H.
    MIT, Dept Phys, Cambridge, MA 02139 USA.
    Conrad, J. M.
    MIT, Dept Phys, Cambridge, MA 02139 USA.
    Moulai, M.
    MIT, Dept Phys, Cambridge, MA 02139 USA.
    Auffenberg, J.
    Rhein Westfal TH Aachen, Phys Inst 3, Aachen, Germany.
    Brenzke, M.
    Rhein Westfal TH Aachen, Phys Inst 3, Aachen, Germany.
    Glauch, T.
    Rhein Westfal TH Aachen, Phys Inst 3, Aachen, Germany.
    Haack, C.
    Rhein Westfal TH Aachen, Phys Inst 3, Aachen, Germany.
    Kalaczynski, P.
    Rhein Westfal TH Aachen, Phys Inst 3, Aachen, Germany.
    Koschinsky, J. P.
    Rhein Westfal TH Aachen, Phys Inst 3, Aachen, Germany.
    Leuermann, M.
    Rhein Westfal TH Aachen, Phys Inst 3, Aachen, Germany.
    Raedel, L.
    Rhein Westfal TH Aachen, Phys Inst 3, Aachen, Germany.
    Reimann, R.
    Rhein Westfal TH Aachen, Phys Inst 3, Aachen, Germany.
    Rongen, M.
    Rhein Westfal TH Aachen, Phys Inst 3, Aachen, Germany.
    Salzer, T.
    Rhein Westfal TH Aachen, Phys Inst 3, Aachen, Germany.
    Schoenen, S.
    Rhein Westfal TH Aachen, Phys Inst 3, Aachen, Germany.
    Schumacher, L.
    Rhein Westfal TH Aachen, Phys Inst 3, Aachen, Germany.
    Stettner, J.
    Rhein Westfal TH Aachen, Phys Inst 3, Aachen, Germany.
    Vehring, M.
    Rhein Westfal TH Aachen, Phys Inst 3, Aachen, Germany.
    Vogel, E.
    Rhein Westfal TH Aachen, Phys Inst 3, Aachen, Germany.
    Wallraff, M.
    Rhein Westfal TH Aachen, Phys Inst 3, Aachen, Germany.
    Waza, A.
    Rhein Westfal TH Aachen, Phys Inst 3, Aachen, Germany.
    Wiebusch, C. H.
    Rhein Westfal TH Aachen, Phys Inst 3, Aachen, Germany.
    Bai, X.
    South Dakota Sch Mines & Technol, Phys Dept, Rapid City, SD USA.
    Dvorak, E.
    South Dakota Sch Mines & Technol, Phys Dept, Rapid City, SD USA.
    Barron, J. P.
    Univ Alberta, Dept Phys, Edmonton, AB, Canada.
    Giang, W.
    Univ Alberta, Dept Phys, Edmonton, AB, Canada.
    Grant, D.
    Univ Alberta, Dept Phys, Edmonton, AB, Canada.
    Kopper, C.
    Univ Alberta, Dept Phys, Edmonton, AB, Canada.
    Moore, R. W.
    Univ Alberta, Dept Phys, Edmonton, AB, Canada.
    Nowicki, S. C.
    Univ Alberta, Dept Phys, Edmonton, AB, Canada.
    Herrera, S. E. Sanchez
    Univ Alberta, Dept Phys, Edmonton, AB, Canada.
    Sarkar, S.
    Univ Copenhagen, Niels Bohr Inst, Copenhagen, Denmark;Univ Alberta, Dept Phys, Edmonton, AB, Canada;Univ Oxford, Dept Phys, Oxford, England.
    Wandler, F. D.
    Univ Alberta, Dept Phys, Edmonton, AB, Canada.
    Weaver, C.
    Univ Alberta, Dept Phys, Edmonton, AB, Canada.
    Wood, T. R.
    Univ Alberta, Dept Phys, Edmonton, AB, Canada.
    Woolsey, E.
    Univ Alberta, Dept Phys, Edmonton, AB, Canada.
    Yanez, J. P.
    Univ Alberta, Dept Phys, Edmonton, AB, Canada.
    Barwick, S. W.
    Univ Calif Irvine, Dept Phys & Astron, Irvine, CA USA.
    Yodh, G.
    Univ Calif Irvine, Dept Phys & Astron, Irvine, CA USA.
    Baum, V.
    Johannes Gutenberg Univ Mainz, Inst Phys, Mainz, Germany.
    Boeser, S.
    Johannes Gutenberg Univ Mainz, Inst Phys, Mainz, Germany.
    di Lorenzo, V.
    Johannes Gutenberg Univ Mainz, Inst Phys, Mainz, Germany.
    Eberhardt, B.
    Johannes Gutenberg Univ Mainz, Inst Phys, Mainz, Germany.
    Ehrhardt, T.
    Johannes Gutenberg Univ Mainz, Inst Phys, Mainz, Germany.
    Koepke, L.
    Johannes Gutenberg Univ Mainz, Inst Phys, Mainz, Germany.
    Krueckl, G.
    Johannes Gutenberg Univ Mainz, Inst Phys, Mainz, Germany.
    Momente, G.
    Johannes Gutenberg Univ Mainz, Inst Phys, Mainz, Germany.
    Peiffer, P.
    Johannes Gutenberg Univ Mainz, Inst Phys, Mainz, Germany.
    Sandroos, J.
    Johannes Gutenberg Univ Mainz, Inst Phys, Mainz, Germany.
    Steuer, A.
    Johannes Gutenberg Univ Mainz, Inst Phys, Mainz, Germany.
    Wiebe, K.
    Johannes Gutenberg Univ Mainz, Inst Phys, Mainz, Germany.
    Bay, R.
    Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
    Filimonov, K.
    Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
    Price, P. B.
    Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
    Woschnagg, K.
    Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
    Beatty, J. J.
    Ohio State Univ, Dept Phys, Columbus, OH 43210 USA;Ohio State Univ, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA;Ohio State Univ, Dept Astron, 174 W 18Th Ave, Columbus, OH 43210 USA.
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    Ruhr Univ Bochum, Fak Phys & Astron, Bochum, Germany.
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    Ruhr Univ Bochum, Fak Phys & Astron, Bochum, Germany.
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    Ruhr Univ Bochum, Fak Phys & Astron, Bochum, Germany.
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    Univ Wuppertal, Dept Phys, Wuppertal, Germany.
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    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
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    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
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    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
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    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
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    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
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    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
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    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
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    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
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    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
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    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
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    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
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    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
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    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
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    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
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    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
    Jero, K.
    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
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    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
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    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
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    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
    Kheirandish, A.
    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
    Liu, Q. R.
    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
    Luszczak, W.
    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
    Mancina, S.
    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
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    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
    Merino, G.
    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
    Schneider, A.
    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
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    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
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    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
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    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
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    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
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    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
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    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
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    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
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    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
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    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
    Wood, J.
    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
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    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
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    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA.
    Brayeur, L.
    VUB, Dienst ELEM, Brussels, Belgium.
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    VUB, Dienst ELEM, Brussels, Belgium.
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    VUB, Dienst ELEM, Brussels, Belgium.
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    VUB, Dienst ELEM, Brussels, Belgium.
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    VUB, Dienst ELEM, Brussels, Belgium.
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    VUB, Dienst ELEM, Brussels, Belgium.
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    VUB, Dienst ELEM, Brussels, Belgium.
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    VUB, Dienst ELEM, Brussels, Belgium.
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    VUB, Dienst ELEM, Brussels, Belgium.
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    VUB, Dienst ELEM, Brussels, Belgium.
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    SNOLAB, Lively, ON, Canada.
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    Westfal Wilhelms Univ Munster, Inst Kernphys, Munster, Germany.
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    Westfal Wilhelms Univ Munster, Inst Kernphys, Munster, Germany.
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    Tech Univ Munich, Phys Dept, Garching, Germany.
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    Tech Univ Munich, Phys Dept, Garching, Germany.
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    Tech Univ Munich, Phys Dept, Garching, Germany.
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    Tech Univ Munich, Phys Dept, Garching, Germany.
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    Tech Univ Munich, Phys Dept, Garching, Germany.
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    Tech Univ Munich, Phys Dept, Garching, Germany.
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    Penn State Univ, Dept Phys, 104 Davey Lab, University Pk, PA 16802 USA;Penn State Univ, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 USA.
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    Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA.
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    Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA.
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    Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA.
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    Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA.
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    Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA.
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    Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA.
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    Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA.
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    Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA;Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA.
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    Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA;Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA.
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    Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA;Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA.
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    Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA;Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA.
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    Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA;Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA.
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    Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA;Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA.
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    Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA;Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA.
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    Univ Ghent, Department Phys & Astron, Ghent, Belgium.
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    Univ Ghent, Department Phys & Astron, Ghent, Belgium.
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    Univ Ghent, Department Phys & Astron, Ghent, Belgium.
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    Univ Ghent, Department Phys & Astron, Ghent, Belgium.
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    Univ Ghent, Department Phys & Astron, Ghent, Belgium.
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    Univ Ghent, Department Phys & Astron, Ghent, Belgium.
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    Humboldt Univ, Inst Phys, Berlin, Germany.
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    Humboldt Univ, Inst Phys, Berlin, Germany.
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    Humboldt Univ, Inst Phys, Berlin, Germany.
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    Southern Univ, Dept Phys, Baton Rouge, LA USA.
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    Southern Univ, Dept Phys, Baton Rouge, LA USA.
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    Southern Univ, Dept Phys, Baton Rouge, LA USA.
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    Univ Wisconsin, Dept Astron, Madison, WI 53706 USA.
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    Lawrence Berkeley Natl Lab, Berkeley, CA USA.
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    Lawrence Berkeley Natl Lab, Berkeley, CA USA.
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    Lawrence Berkeley Natl Lab, Berkeley, CA USA.
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    Lawrence Berkeley Natl Lab, Berkeley, CA USA.
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    Lawrence Berkeley Natl Lab, Berkeley, CA USA.
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    Lawrence Berkeley Natl Lab, Berkeley, CA USA.
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    Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA;Univ Wisconsin, Wisconsin Icecube Particle Astrophys Ctr, 1150 Univ Ave, Madison, WI 53706 USA;Univ Tokyo, Earthquake Res Inst, Bunkyo Ku, Tokyo, Japan.
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    Chiba Univ, Dept Phys, Chiba, Japan;Chiba Univ, Inst Global Prominent Res, Chiba, Japan.
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    Chiba Univ, Dept Phys, Chiba, Japan;Chiba Univ, Inst Global Prominent Res, Chiba, Japan.
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    Chiba Univ, Dept Phys, Chiba, Japan;Chiba Univ, Inst Global Prominent Res, Chiba, Japan.
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    Chiba Univ, Dept Phys, Chiba, Japan;Chiba Univ, Inst Global Prominent Res, Chiba, Japan.
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    Chiba Univ, Dept Phys, Chiba, Japan;Chiba Univ, Inst Global Prominent Res, Chiba, Japan.
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    Chiba Univ, Dept Phys, Chiba, Japan;Chiba Univ, Inst Global Prominent Res, Chiba, Japan.
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    Chiba Univ, Dept Phys, Chiba, Japan;Chiba Univ, Inst Global Prominent Res, Chiba, Japan.
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    Chiba Univ, Dept Phys, Chiba, Japan;Chiba Univ, Inst Global Prominent Res, Chiba, Japan.
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    Clark Atlanta Univ, CTSPS, Atlanta, GA 30314 USA.
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    Univ Texas Arlington, Dept Phys, POB 19059, Arlington, TX 76019 USA.
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    Queen Mary Univ London, Sch Phys & Astron, London, England.
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    Queen Mary Univ London, Sch Phys & Astron, London, England.
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    SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA.
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    SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA.
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    SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA.
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    SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA.
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    Univ Mons, Mons, Belgium.
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    Univ Alabama, Dept Phys & Astron, Tuscaloosa, AL 35487 USA.
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    Univ Alabama, Dept Phys & Astron, Tuscaloosa, AL 35487 USA.
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    Univ Alabama, Dept Phys & Astron, Tuscaloosa, AL 35487 USA.
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    Univ Alabama, Dept Phys & Astron, Tuscaloosa, AL 35487 USA.
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    Univ Alabama, Dept Phys & Astron, Tuscaloosa, AL 35487 USA.
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    Univ Alabama, Dept Phys & Astron, Tuscaloosa, AL 35487 USA.
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    DESY, Zeuthen, Germany;Humboldt Univ, Inst Phys, Berlin, Germany.
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    Drexel Univ, Dept Phys, Philadelphia, PA 19104 USA.
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    Drexel Univ, Dept Phys, Philadelphia, PA 19104 USA.
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    Drexel Univ, Dept Phys, Philadelphia, PA 19104 USA.
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    Drexel Univ, Dept Phys, Philadelphia, PA 19104 USA.
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    Univ Wisconsin, Dept Phys, River Falls, WI 54022 USA.
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    Univ Wisconsin, Dept Phys, River Falls, WI 54022 USA.
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    Univ Wisconsin, Dept Phys, River Falls, WI 54022 USA.
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    Yale Univ, Dept Phys, New Haven, CT USA.
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    Univ Alaska Anchorage, Dept Phys & Astron, Anchorage, AK USA.
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    Ohio State Univ, Dept Phys, Columbus, OH 43210 USA;Ohio State Univ, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA.
    Sutherland, M.
    Ohio State Univ, Dept Phys, Columbus, OH 43210 USA;Ohio State Univ, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA.
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    Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA;Georgia Inst Technol, Ctr Relativist Astrophys, Atlanta, GA 30332 USA.
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    Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA;Georgia Inst Technol, Ctr Relativist Astrophys, Atlanta, GA 30332 USA.
    Neutrino interferometry for high-precision tests of Lorentz symmetry with IceCube2018In: Nature Physics, ISSN 1745-2473, E-ISSN 1745-2481, Vol. 14, no 9, p. 961-966Article in journal (Refereed)
    Abstract [en]

    Lorentz symmetry is a fundamental spacetime symmetry underlying both the standard model of particle physics and general relativity. This symmetry guarantees that physical phenomena are observed to be the same by all inertial observers. However, unified theories, such as string theory, allow for violation of this symmetry by inducing new spacetime structure at the quantum gravity scale. Thus, the discovery of Lorentz symmetry violation could be the first hint of these theories in nature. Here we report the results of the most precise test of spacetime symmetry in the neutrino sector to date. We use high-energy atmospheric neutrinos observed at the IceCube Neutrino Observatory to search for anomalous neutrino oscillations as signals of Lorentz violation. We find no evidence for such phenomena. This allows us to constrain the size of the dimension-four operator in the standard-model extension for Lorentz violation to the 10(-28) level and to set limits on higher-dimensional operators in this framework. These are among the most stringent limits on Lorentz violation set by any physical experiment.

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    Univ Adelaide, Dept Phys, Adelaide, SA 5005, Australia..
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    Univ Adelaide, Dept Phys, Adelaide, SA 5005, Australia..
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    Univ Adelaide, Dept Phys, Adelaide, SA 5005, Australia..
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    Univ Adelaide, Dept Phys, Adelaide, SA 5005, Australia..
    Whelan, B. J.
    Univ Adelaide, Dept Phys, Adelaide, SA 5005, Australia..
    Ackermann, M.
    DESY, D-17738 Zeuthen, Germany..
    Bernardini, E.
    DESY, D-17738 Zeuthen, Germany..
    Blot, S.
    DESY, D-17738 Zeuthen, Germany..
    Bradascio, F.
    DESY, D-17738 Zeuthen, Germany..
    Bretz, H. -P
    Brostean-Kaiser, J.
    DESY, D-17738 Zeuthen, Germany..
    Franckowiak, A.
    DESY, D-17738 Zeuthen, Germany..
    Jacobi, E.
    DESY, D-17738 Zeuthen, Germany..
    Karg, T.
    DESY, D-17738 Zeuthen, Germany..
    Kintscher, T.
    DESY, D-17738 Zeuthen, Germany..
    Kunwar, S.
    DESY, D-17738 Zeuthen, Germany..
    Nahnhauer, R.
    DESY, D-17738 Zeuthen, Germany..
    Satalecka, K.
    DESY, D-17738 Zeuthen, Germany..
    Spiering, C.
    DESY, D-17738 Zeuthen, Germany..
    Stachurska, J.
    DESY, D-17738 Zeuthen, Germany..
    Stasik, A.
    DESY, D-17738 Zeuthen, Germany..
    Strotjohann, N. L.
    DESY, D-17738 Zeuthen, Germany..
    Terliuk, A.
    DESY, D-17738 Zeuthen, Germany..
    Usner, M.
    DESY, D-17738 Zeuthen, Germany..
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    DESY, D-17738 Zeuthen, Germany..
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    Univ Canterbury, Dept Phys & Astron, Christchurch, New Zealand..
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    Univ Canterbury, Dept Phys & Astron, Christchurch, New Zealand..
    Aguilar, J. A.
    Univ Libre Bruxelles, Sci Fac, B-1050 Brussels, Belgium..
    Ansseau, I.
    Univ Libre Bruxelles, Sci Fac, B-1050 Brussels, Belgium..
    Heereman, D.
    Univ Libre Bruxelles, Sci Fac, B-1050 Brussels, Belgium..
    Meagher, K.
    Univ Libre Bruxelles, Sci Fac, B-1050 Brussels, Belgium..
    Meures, T.
    Univ Libre Bruxelles, Sci Fac, B-1050 Brussels, Belgium..
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    Univ Libre Bruxelles, Sci Fac, B-1050 Brussels, Belgium..
    Pinat, E.
    Univ Libre Bruxelles, Sci Fac, B-1050 Brussels, Belgium..
    Raab, C.
    Univ Libre Bruxelles, Sci Fac, B-1050 Brussels, Belgium..
    Ahlers, M.
    Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark..
    Koskinen, D. J.
    Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark..
    Larson, M. J.
    Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark..
    Medici, M.
    Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark..
    Rameez, M.
    Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark..
    Ahrens, M.
    Stockholm Univ, Oskar Klein Ctr, SE-10691 Stockholm, Sweden.;Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden..
    Bohm, C.
    Stockholm Univ, Oskar Klein Ctr, SE-10691 Stockholm, Sweden.;Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden..
    Dumm, J. P.
    Stockholm Univ, Oskar Klein Ctr, SE-10691 Stockholm, Sweden.;Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden..
    Finley, C.
    Stockholm Univ, Oskar Klein Ctr, SE-10691 Stockholm, Sweden.;Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden..
    Flis, S.
    Stockholm Univ, Oskar Klein Ctr, SE-10691 Stockholm, Sweden.;Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden..
    Hultqvist, K.
    Stockholm Univ, Oskar Klein Ctr, SE-10691 Stockholm, Sweden.;Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden..
    Walck, C.
    Stockholm Univ, Oskar Klein Ctr, SE-10691 Stockholm, Sweden.;Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden..
    Zoll, M.
    Stockholm Univ, Oskar Klein Ctr, SE-10691 Stockholm, Sweden.;Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden..
    Al Samarai, I.
    Univ Geneva, Dept Phys Nucl & Corpusculaire, CH-1211 Geneva, Switzerland..
    Bron, S.
    Univ Geneva, Dept Phys Nucl & Corpusculaire, CH-1211 Geneva, Switzerland..
    Carver, T.
    Univ Geneva, Dept Phys Nucl & Corpusculaire, CH-1211 Geneva, Switzerland..
    Christov, A.
    Univ Geneva, Dept Phys Nucl & Corpusculaire, CH-1211 Geneva, Switzerland..
    Montaruli, T.
    Univ Geneva, Dept Phys Nucl & Corpusculaire, CH-1211 Geneva, Switzerland..
    Altmann, D.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, D-91058 Erlangen, Germany..
    Anton, G.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, D-91058 Erlangen, Germany..
    Gluesenkamp, T.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, D-91058 Erlangen, Germany..
    Katz, U.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, D-91058 Erlangen, Germany..
    Kittler, T.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, D-91058 Erlangen, Germany..
    Tselengidou, M.
    Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Ctr Astroparticle Phys, D-91058 Erlangen, Germany..
    Andeen, K.
    Marquette Univ, Dept Phys, Milwaukee, WI 53201 USA..
    Plum, M.
    Marquette Univ, Dept Phys, Milwaukee, WI 53201 USA..
    Anderson, T.
    Penn State Univ, Dept Phys, University Pk, PA 16802 USA..
    DeLaunay, J. J.
    Penn State Univ, Dept Phys, University Pk, PA 16802 USA..
    Dunkman, M.
    Penn State Univ, Dept Phys, University Pk, PA 16802 USA..
    Eller, P.
    Penn State Univ, Dept Phys, University Pk, PA 16802 USA..
    Huang, F.
    Penn State Univ, Dept Phys, University Pk, PA 16802 USA..
    Keivani, A.
    Penn State Univ, Dept Phys, University Pk, PA 16802 USA..
    Lanfranchi, J. L.
    Penn State Univ, Dept Phys, University Pk, PA 16802 USA..
    Pankova, D. V.
    Penn State Univ, Dept Phys, University Pk, PA 16802 USA..
    Tesic, G.
    Penn State Univ, Dept Phys, University Pk, PA 16802 USA..
    Turley, C. F.
    Penn State Univ, Dept Phys, University Pk, PA 16802 USA..
    Weiss, M. J.
    Penn State Univ, Dept Phys, University Pk, PA 16802 USA..
    Arguelles, C.
    MIT, Dept Phys, Cambridge, MA 02139 USA..
    Axani, S.
    MIT, Dept Phys, Cambridge, MA 02139 USA..
    Collin, G. H.
    MIT, Dept Phys, Cambridge, MA 02139 USA..
    Conrad, J. M.
    MIT, Dept Phys, Cambridge, MA 02139 USA..
    Moulai, M.
    MIT, Dept Phys, Cambridge, MA 02139 USA..
    Auffenberg, J.
    Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany..
    Brenzke, M.
    Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany..
    Glauch, T.
    Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany..
    Haack, C.
    Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany..
    Kalaczynski, P.
    Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany..
    Koschinsky, J. P.
    Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany..
    Leuermann, M.
    Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany..
    Rdel, L.
    Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany..
    Reimann, R.
    Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany..
    Rongen, M.
    Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany..
    Saelzer, T.
    Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany..
    Schoenen, S.
    Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany..
    Schumacher, L.
    Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany..
    Stettner, J.
    Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany..
    Vehring, M.
    Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany..
    Vogel, E.
    Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany..
    Wallraff, M.
    Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany..
    Waza, A.
    Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany..
    Wiebusch, C. H.
    Rhein Westfal TH Aachen, Phys Inst 3, D-52056 Aachen, Germany..
    Bai, X.
    South Dakota Sch Mines & Technol, Phys Dept, Rapid City, SD 57701 USA..
    Barron, J. P.
    Univ Alberta, Dept Phys, Edmonton, AB T6G 2E1, Canada..
    Giang, W.
    Univ Alberta, Dept Phys, Edmonton, AB T6G 2E1, Canada..
    Grant, D.
    Univ Alberta, Dept Phys, Edmonton, AB T6G 2E1, Canada..
    Kopper, C.
    Univ Alberta, Dept Phys, Edmonton, AB T6G 2E1, Canada..
    Moore, R. W.
    Univ Alberta, Dept Phys, Edmonton, AB T6G 2E1, Canada..
    Nowicki, S. C.
    Univ Alberta, Dept Phys, Edmonton, AB T6G 2E1, Canada..
    Herrera, S. E. Sanchez
    Univ Alberta, Dept Phys, Edmonton, AB T6G 2E1, Canada..
    Sarkar, S.
    Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark.;Univ Alberta, Dept Phys, Edmonton, AB T6G 2E1, Canada.;Univ Oxford, Dept Phys, Oxford OX1 3NP, England..
    Wandler, F. D.
    Univ Alberta, Dept Phys, Edmonton, AB T6G 2E1, Canada..
    Weaver, C.
    Univ Alberta, Dept Phys, Edmonton, AB T6G 2E1, Canada..
    Wood, T. R.
    Univ Alberta, Dept Phys, Edmonton, AB T6G 2E1, Canada..
    Woolsey, E.
    Univ Alberta, Dept Phys, Edmonton, AB T6G 2E1, Canada..
    Yanez, J. P.
    Univ Alberta, Dept Phys, Edmonton, AB T6G 2E1, Canada..
    Barwick, S. W.
    Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA..
    Yodh, G.
    Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA..
    Baum, V.
    Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany..
    Boeser, S.
    Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany..
    di Lorenzo, V.
    Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany..
    Eberhardt, B.
    Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany..
    Ehrhardt, T.
    Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany..
    Koepke, L.
    Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany..
    Krueckl, G.
    Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany..
    Momente, G.
    Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany..
    Peiffer, P.
    Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany..
    Sandroos, J.
    Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany..
    Steuer, A.
    Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany..
    Wiebe, K.
    Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany..
    Bay, R.
    Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA..
    Filimonov, K.
    Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA..
    Price, P. B.
    Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA..
    Woschnagg, K.
    Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA..
    Beatty, J. J.
    Ohio State Univ, Dept Phys, Columbus, OH 43210 USA.;Ohio State Univ, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA..
    Tjus, J. Becker
    Ruhr Univ Bochum, Fak Phys & Astron, D-44780 Bochum, Germany..
    Bos, F.
    Ruhr Univ Bochum, Fak Phys & Astron, D-44780 Bochum, Germany..
    Eichmann, B.
    Ruhr Univ Bochum, Fak Phys & Astron, D-44780 Bochum, Germany..
    Kroll, M.
    Ruhr Univ Bochum, Fak Phys & Astron, D-44780 Bochum, Germany..
    Schoeneberg, S.
    Ruhr Univ Bochum, Fak Phys & Astron, D-44780 Bochum, Germany..
    Tenholt, F.
    Ruhr Univ Bochum, Fak Phys & Astron, D-44780 Bochum, Germany..
    Becker, K. -H
    Bindig, D.
    Univ Wuppertal, Dept Phys, D-42119 Wuppertal, Germany..
    Helbing, K.
    Univ Wuppertal, Dept Phys, D-42119 Wuppertal, Germany..
    Hickford, S.
    Univ Wuppertal, Dept Phys, D-42119 Wuppertal, Germany..
    Hoffmann, R.
    Univ Wuppertal, Dept Phys, D-42119 Wuppertal, Germany..
    Lauber, F.
    Univ Wuppertal, Dept Phys, D-42119 Wuppertal, Germany..
    Naumann, U.
    Univ Wuppertal, Dept Phys, D-42119 Wuppertal, Germany..
    Pollmann, A. Obertacke
    Univ Wuppertal, Dept Phys, D-42119 Wuppertal, Germany..
    Soldin, D.
    Univ Wuppertal, Dept Phys, D-42119 Wuppertal, Germany..
    BenZvi, S.
    Univ Rochester, Dept Phys & Astron, 601 Elmwood Ave, Rochester, NY 14627 USA..
    Cross, R.
    Univ Rochester, Dept Phys & Astron, 601 Elmwood Ave, Rochester, NY 14627 USA..
    Berley, D.
    Univ Maryland, Dept Phys, College Pk, MD 20742 USA..
    Blaufuss, E.
    Univ Maryland, Dept Phys, College Pk, MD 20742 USA..
    Cheung, E.
    Univ Maryland, Dept Phys, College Pk, MD 20742 USA..
    Felde, J.
    Univ Maryland, Dept Phys, College Pk, MD 20742 USA..
    Friedman, E.
    Univ Maryland, Dept Phys, College Pk, MD 20742 USA..
    Hellauer, R.
    Univ Maryland, Dept Phys, College Pk, MD 20742 USA..
    Hoffman, K. D.
    Univ Maryland, Dept Phys, College Pk, MD 20742 USA..
    Maunu, R.
    Univ Maryland, Dept Phys, College Pk, MD 20742 USA..
    Olivas, A.
    Univ Maryland, Dept Phys, College Pk, MD 20742 USA..
    Schmidt, T.
    Univ Maryland, Dept Phys, College Pk, MD 20742 USA..
    Song, M.
    Univ Maryland, Dept Phys, College Pk, MD 20742 USA..
    Sullivan, G. W.
    Univ Maryland, Dept Phys, College Pk, MD 20742 USA..
    Besson, D. Z.
    Univ Kansas, Dept Phys & Astron, Lawrence, KS 66045 USA..
    Binder, G.
    Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.;Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA..
    Klein, S. R.
    Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.;Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA..
    Miarecki, S.
    Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.;Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA..
    Palczewski, T.
    Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.;Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA..
    Tatar, J.
    Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.;Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA..
    Boerner, M.
    TU Dortmund Univ, Dept Phys, D-44221 Dortmund, Germany..
    Fuchs, T.
    TU Dortmund Univ, Dept Phys, D-44221 Dortmund, Germany..
    Huennefeld, M.
    TU Dortmund Univ, Dept Phys, D-44221 Dortmund, Germany..
    Meier, M.
    TU Dortmund Univ, Dept Phys, D-44221 Dortmund, Germany..
    Menne, T.
    TU Dortmund Univ, Dept Phys, D-44221 Dortmund, Germany..
    Pieloth, D.
    TU Dortmund Univ, Dept Phys, D-44221 Dortmund, Germany..
    Rhode, W.
    TU Dortmund Univ, Dept Phys, D-44221 Dortmund, Germany..
    Ruhe, T.
    TU Dortmund Univ, Dept Phys, D-44221 Dortmund, Germany..
    Sandrock, A.
    TU Dortmund Univ, Dept Phys, D-44221 Dortmund, Germany..
    Schlunder, P.
    TU Dortmund Univ, Dept Phys, D-44221 Dortmund, Germany..
    Soedingrekso, J.
    TU Dortmund Univ, Dept Phys, D-44221 Dortmund, Germany..
    Werthebach, J.
    TU Dortmund Univ, Dept Phys, D-44221 Dortmund, Germany..
    Bose, D.
    Sungkyunkwan Univ, Dept Phys, Suwon 440746, South Korea..
    Dujmovic, H.
    Sungkyunkwan Univ, Dept Phys, Suwon 440746, South Korea..
    In, S.
    Sungkyunkwan Univ, Dept Phys, Suwon 440746, South Korea..
    Jeong, M.
    Sungkyunkwan Univ, Dept Phys, Suwon 440746, South Korea..
    Kang, W.
    Sungkyunkwan Univ, Dept Phys, Suwon 440746, South Korea..
    Kim, J.
    Sungkyunkwan Univ, Dept Phys, Suwon 440746, South Korea..
    Rott, C.
    Sungkyunkwan Univ, Dept Phys, Suwon 440746, South Korea..
    Botner, Olga
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Burgman, Alexander
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Hallgren, Allan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    de los Heros, Carlos
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Unger, Elisabeth
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Bourbeau, J.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Braun, J.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Casey, J.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Chirkin, D.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Day, M.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Desiati, P.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Diaz-Velez, J. C.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Fahey, S.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Ghorbani, K.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Griffith, Z.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Halzen, F.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Hanson, K.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Hokanson-Fasig, B.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Hoshina, K.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA.;Univ Tokyo, Earthquake Res Inst, Bunkyo Ku, Tokyo 1130032, Japan..
    Jero, K.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Karle, A.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Kauer, M.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Kelley, J. L.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Kheirandish, A.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Liu, Q. R.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Luszczak, W.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Mancina, S.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    McNally, F.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Merino, G.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Schneider, A.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Tobin, M. N.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Tosi, D.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Ty, B.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Vandenbroucke, J.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Wandkowsky, N.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Wendt, C.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Westerhoff, S.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Wille, L.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Wolf, M.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Wood, J.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Xu, D. L.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Yuan, T.
    Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.;Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA..
    Brayeur, L.
    Vrije Univ Brussel, Dienst ELEM, B-1050 Brussels, Belgium..
    Casier, M.
    Vrije Univ Brussel, Dienst ELEM, B-1050 Brussels, Belgium..
    De Clercq, C.
    Vrije Univ Brussel, Dienst ELEM, B-1050 Brussels, Belgium..
    de Vries, K. D.
    Vrije Univ Brussel, Dienst ELEM, B-1050 Brussels, Belgium..
    de Wasseige, G.
    Vrije Univ Brussel, Dienst ELEM, B-1050 Brussels, Belgium..
    Kunnen, J.
    Vrije Univ Brussel, Dienst ELEM, B-1050 Brussels, Belgium..
    Lunemann, J.
    Vrije Univ Brussel, Dienst ELEM, B-1050 Brussels, Belgium..
    Maggi, G.
    Vrije Univ Brussel, Dienst ELEM, B-1050 Brussels, Belgium..
    Toscano, S.
    Vrije Univ Brussel, Dienst ELEM, B-1050 Brussels, Belgium..
    van Eijndhoven, N.
    Vrije Univ Brussel, Dienst ELEM, B-1050 Brussels, Belgium..
    Clark, K.
    SNOLAB, Lively P3Y 1N2, ON, Canada..
    Classen, L.
    Westfal Wilhelms Univ Munster, Inst Kernphys, D-48149 Munster, Germany..
    Kappes, A.
    Westfal Wilhelms Univ Munster, Inst Kernphys, D-48149 Munster, Germany..
    Coenders, S.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Huber, M.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Krings, K.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Rea, I. C.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Resconi, E.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Turcati, A.
    Tech Univ Munich, Phys Dept, D-85748 Garching, Germany..
    Cowen, D. F.
    Penn State Univ, Dept Phys, University Pk, PA 16802 USA.;Penn State Univ, Dept Phys & Astron, University Pk, PA 16802 USA..
    de Andre, J. P. A. M.
    Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA..
    DeYoung, T.
    Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA..
    Hignight, J.
    Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA..
    Lennarz, D.
    Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA..
    Mahn, K. B. M.
    Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA..
    Micallef, J.
    Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA..
    Neer, G.
    Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA..
    Rysewyk, D.
    Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA..
    Dembinski, H.
    Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA.;Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA..
    Evenson, P. A.
    Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA.;Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA..
    Gaisser, T. K.
    Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA.;Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA..
    Gonzalez, J. G.
    Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA.;Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA..
    Koirala, R.
    Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA.;Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA..
    Pandya, H.
    Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA.;Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA..
    Seckel, D.
    Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA.;Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA..
    Stanev, T.
    Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA.;Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA..
    Tilav, S.
    Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA.;Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA..
    De Ridder, S.
    Univ Ghent, Dept Phys & Astron, B-9000 Ghent, Belgium..
    Labare, M.
    Humboldt Univ, Inst Ohys, D-12489 Berlin, Germany..
    Ryckbosch, D.
    Humboldt Univ, Inst Ohys, D-12489 Berlin, Germany..
    Van Driessche, W.
    Humboldt Univ, Inst Ohys, D-12489 Berlin, Germany..
    Vanheule, S.
    Humboldt Univ, Inst Ohys, D-12489 Berlin, Germany..
    Vraeghe, M.
    Humboldt Univ, Inst Ohys, D-12489 Berlin, Germany..
    de With, M.
    Humboldt Univ, Inst Ohys, D-12489 Berlin, Germany..
    Hebecker, D.
    Humboldt Univ, Inst Ohys, D-12489 Berlin, Germany..
    Kolanoski, H.
    Humboldt Univ, Inst Ohys, D-12489 Berlin, Germany..
    Fazely, A. R.
    Southern Univ, Dept Phys, Baton Rouge, LA 70813 USA..
    Ter-Antonyan, S.
    Southern Univ, Dept Phys, Baton Rouge, LA 70813 USA..
    Xu, X. W.
    Southern Univ, Dept Phys, Baton Rouge, LA 70813 USA..
    Gallagher, J.
    Univ Wisconsin, Dept Astron, Madison, WI 53706 USA.;Univ Mons, B-7000 Mons, Belgium..
    Gerhardt, L.
    Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA..
    Goldschmidt, A.
    Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA..
    Nygren, D. R.
    Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA..
    Przybylski, G. T.
    Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA..
    Stezelberger, T.
    Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA..
    Stokstad, R. G.
    Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA..
    Ishihara, A.
    Chiba Univ, Dept Phys, Chiba 2638522, Japan.;Chiba Univ, Inst Global Prominent Res, Chiba 2638522, Japan..
    Kim, M.
    Chiba Univ, Dept Phys, Chiba 2638522, Japan.;Chiba Univ, Inst Global Prominent Res, Chiba 2638522, Japan..
    Kuwabara, T.
    Chiba Univ, Dept Phys, Chiba 2638522, Japan.;Chiba Univ, Inst Global Prominent Res, Chiba 2638522, Japan..
    Lu, L.
    Chiba Univ, Dept Phys, Chiba 2638522, Japan.;Chiba Univ, Inst Global Prominent Res, Chiba 2638522, Japan..
    Mase, K.
    Chiba Univ, Dept Phys, Chiba 2638522, Japan.;Chiba Univ, Inst Global Prominent Res, Chiba 2638522, Japan..
    Relich, M.
    Chiba Univ, Dept Phys, Chiba 2638522, Japan.;Chiba Univ, Inst Global Prominent Res, Chiba 2638522, Japan..
    Stossl, A.
    Chiba Univ, Dept Phys, Chiba 2638522, Japan.;Chiba Univ, Inst Global Prominent Res, Chiba 2638522, Japan..
    Yoshida, S.
    Chiba Univ, Dept Phys, Chiba 2638522, Japan.;Chiba Univ, Inst Global Prominent Res, Chiba 2638522, Japan..
    Japaridze, G. S.
    Clark Atlanta Univ, Ctr Theoret Studies Phys Syst, Atlanta, GA 30314 USA..
    Jones, B. J. P.
    Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA..
    Kiryluk, J.
    SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA..
    Lesiak-Bzdak, M.
    SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA..
    Niederhausen, H.
    SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA..
    Xu, Y.
    SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA..
    Kohnen, G.
    Kopper, S.
    Univ Alabama, Dept Phys & Astron, Tuscaloosa, AL 35487 USA..
    Nakarmi, P.
    Univ Alabama, Dept Phys & Astron, Tuscaloosa, AL 35487 USA..
    Pepper, J. A.
    Univ Alabama, Dept Phys & Astron, Tuscaloosa, AL 35487 USA..
    Toale, P. A.
    Univ Alabama, Dept Phys & Astron, Tuscaloosa, AL 35487 USA..
    Williams, D. R.
    Univ Alabama, Dept Phys & Astron, Tuscaloosa, AL 35487 USA..
    Kowalski, M.
    DESY, D-17738 Zeuthen, Germany.;Humboldt Univ, Inst Ohys, D-12489 Berlin, Germany..
    Kurahashi, N.
    Drexel Univ, Dept Phys, Philadelphia, PA 19104 USA..
    Relethford, B.
    Drexel Univ, Dept Phys, Philadelphia, PA 19104 USA..
    Richman, M.
    Drexel Univ, Dept Phys, Philadelphia, PA 19104 USA..
    Wills, L.
    Drexel Univ, Dept Phys, Philadelphia, PA 19104 USA..
    Madsen, J.
    Univ Wisconsin, Dept Phys, River Falls, WI 54022 USA..
    Seunarine, S.
    Univ Wisconsin, Dept Phys, River Falls, WI 54022 USA..
    Spiczak, G. M.
    Univ Wisconsin, Dept Phys, River Falls, WI 54022 USA..
    Maruyama, R.
    Yale Univ, Dept Phys, New Haven, CT 06520 USA..
    Rawlins, K.
    Univ Alaska Anchorage, Dept Phys & Astron, Anchorage, AK 99508 USA..
    Sutherland, M.
    Ohio State Univ, Dept Phys, Columbus, OH 43210 USA.;Ohio State Univ, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA..
    Taboada, I.
    Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA.;Georgia Inst Technol, Ctr Relativist Astrophys, Atlanta, GA 30332 USA..
    Tung, C. F.
    Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA.;Georgia Inst Technol, Ctr Relativist Astrophys, Atlanta, GA 30332 USA..
    Measurement of the multi-TeV neutrino interaction cross-section with IceCube using Earth absorption2017In: Nature, ISSN 0028-0836, E-ISSN 1476-4687, Vol. 551, no 7682, p. 596-600Article in journal (Refereed)
    Abstract [en]

    Neutrinos interact only very weakly, so they are extremely penetrating. The theoretical neutrino-nucleon interaction cross-section, however, increases with increasing neutrino energy, and neutrinos with energies above 40 teraelectronvolts (TeV) are expected to be absorbed as they pass through the Earth. Experimentally, the cross-section has been determined only at the relatively low energies (below 0.4 TeV) that are available at neutrino beams fromaccelerators(1,2). Here we report a measurement of neutrino absorption by the Earth using a sample of 10,784 energetic upward-going neutrino-induced muons. The flux of high-energy neutrinos transiting long paths through the Earth is attenuated compared to a reference sample that follows shorter trajectories. Using a fit to the two-dimensional distribution of muon energy and zenith angle, we determine the neutrino-nucleon interaction cross-section for neutrino energies 6.3-980 TeV, more than an order of magnitude higher than previous measurements. The measured cross-section is about 1.3 times the prediction of the standard model(3), consistent with the expectations for charged-and neutral-current interactions. We do not observe a large increase in the crosssection with neutrino energy, in contrast with the predictions of some theoretical models, including those invoking more compact spatial dimensions(4) or the production of leptoquarks(5). This cross-section measurement can be used to set limits on the existence of some hypothesized beyond-standard-model particles, including leptoquarks.

  • 2209. Aartsen, Marja
    et al.
    Beland, Daniel
    Edmondson, Ricca
    Ginn, Jay
    Komp, Kathrin
    Umeå University, Faculty of Social Sciences, Department of Sociology.
    Nilsson, Magnus
    Perek-Bialas, Jolanta
    Sorensen, Penny
    Weicht, Bernhard
    Ageing in the light of crises: Economic crisis, demographic change, and the search for meaning2012Report (Other academic)
  • 2210. Aartsen, Marja
    et al.
    Béland, Daniel
    Edmondson, Ricca
    Ginn, Jay
    Komp, Kathrin
    Nilsson, Magnus
    Karlstad University, Faculty of Social and Life Sciences, Department of Social Studies.
    Perek-Bialas, Jolanta
    Sorensen, Penny
    Weicht, Bernard
    Ageing in the light of crises: Economic crisis, demographic change, and the search for meaning2012Report (Other academic)
  • 2211.
    Aartsen, Marja
    et al.
    Social Sciences, VU University Amsterdam, Amsterdam, The Netherlands.
    Komp, Kathrin
    Umeå University, Faculty of Social Sciences, Department of Sociology.
    The future of greying Europe: Conclusion2013In: Old age in Europe: A textbook of gerontology / [ed] Komp, K., & Aartsen, M., Dordrecht: Springer Netherlands, 2013, p. 131-136Chapter in book (Refereed)
    Abstract [en]

    Although Europe’s population is greying, the future of Europe does not look grey. What can be learned from this book is that old age is not necessarily characterized by frailty and decline, but instead can be a time of self-fulfillment, activity, and social participation. Moreover, we now know that population ageing does not need to threaten extant social and welfare state-related institutions, but instead opens up potentials for restructuring and reinvention. Life expectancy is longer than ever before and living conditions that enhance healthy ageing have very much improved. New technologies and Information and Communication Technologies may assist older people to stay in their homes longer. The growing possibilities to reach a good old age may have given rise to what is sometimes called ‘a silver economy’: an economy with all kinds of new products and services, particularly aimed at the growing share of healthy and wealthy senior citizens. The greying of Europe might, thus, ultimately lead us into a bright and colourful future.

  • 2212. Aartsen, Marja
    et al.
    Valtorta, Nicole
    Dahlberg, Lena
    Dalarna University, School of Education, Health and Social Studies, Social Work.
    van Regenmortel, Sofie
    Waldegrave, Charles
    Corrigan, Trudy
    Exclusion from social relations in later life: Briefing paper2018Report (Other academic)
  • 2213. Aartsen, M.G.
    et al.
    Boersma, David
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Botner, Olga
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Euler, Sebastian
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Hallgren, Allan
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Perez de los Heros, Carlos
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Ström, Rickard
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Taavola, Henric
    Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
    Zweizig, J.
    Multimessenger search for sources of gravitational waves and high-energy neutrinos: Initial results for LIGO-Virgo and IceCube2014In: Physical Review D, ISSN 1550-7998, E-ISSN 1550-2368, Vol. 90, no 10, p. 102002-Article in journal (Refereed)
    Abstract [en]

    We report the results of a multimessenger search for coincident signals from the LIGO and Virgo gravitational-wave observatories and the partially completed IceCube high-energy neutrino detector, including periods of joint operation between 2007-2010. These include parts of the 2005-2007 run and the 2009-2010 run for LIGO-Virgo, and IceCube's observation periods with 22, 59 and 79 strings. We find no significant coincident events, and use the search results to derive upper limits on the rate of joint sources for a range of source emission parameters. For the optimistic assumption of gravitational-wave emission energy of 10(-2) M(circle dot)c(2) at similar to 150 Hz with similar to 60 ms duration, and high-energy neutrino emission of 1051 erg comparable to the isotropic gamma-ray energy of gamma-ray bursts, we limit the source rate below 1.6 x 10(-2) Mpc(-3) yr(-1). We also examine how combining information from gravitational waves and neutrinos will aid discovery in the advanced gravitational-wave detector era.

  • 2214.
    Aarum Hansen, Heidi
    et al.
    Department for Health and Social Studies, Østfold University College, Halden, Norway .
    Björktomta, Siv-Britt
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Social Sciences, Department of Sociology.
    Svalastog, Anna Lydia
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences, Centre for Research Ethics and Bioethics. Department for Health and Social Studies, Østfold University College, Halden, Norway .
    Digital society generates new challenges on Child Welfare Services2017In: Croatian Medical Journal, ISSN 0353-9504, E-ISSN 1332-8166, Vol. 58, no 1, p. 80-83Article in journal (Refereed)
    Abstract [en]

    Digital society has created a new situation that challenges the present discourse on public services. Since it is only a recent phenomenon, digital society has not yet been in-cluded in the broader filed of social work education and practice. In the present text, we focus on casework with children. The examples described in the text are taken from Scandinavian experiences and reflect our background and practice in social work with children. However, we dare to say that the situation is more or less the same in the rest of Europe, as illustrated by the presented social work examples and references from wider European context.

  • 2215.
    Aarvaag, Evalinda
    et al.
    Dalarna University, School of Technology and Business Studies, Human Resource Management.
    Lindroth, Linda
    Dalarna University, School of Technology and Business Studies, Human Resource Management.
    Konflikter, ogräs eller frön?: Arbetsplatskonflikter utifrån ett ledarskapsperspektiv2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The authors' joint commitment conflicts produced the idea to study highly-regarded leaders' perspective on workplace conflicts and their constructive resolution. Basically there was a curiosity about how such leaders resolve conflicts so effectively.

    Workplace conflicts are a major part of a leader´s time at work. While probably unavoidable, how conflicts are handled is crucial for the growth and development of an organization and its employees. There has been practical conflict management research from a leadership perspective, but the studies have had a quantitative focus. This study aims to examine the various ways respected managers address and resolve workplace conflicts. The study seeks to answer the following questions: What kinds of workplace conflict exist in an organization? What are the critical factors in conflicts? How are conflicts viewed constructive/destructive? What is a leader's role when managing/resolving workplace conflict? What abilities and qualities have leaders who manage conflict effectively?

    The study is based on a qualitative approach using semi-structured interviews. The material was thematic and coded. Results were analysed using the theoretical framework. The empirical data was analysed using Rahims (2002) theory of conflict management. Building on the results, the model which has been developed will be presented at the study’s conclusion.

    The study's analysis reveals that leaders who deal with conflicts constructively mastered the three main areas of concern, depending on the situation. These are people-oriented, task-oriented, and learning- and culture-oriented. The study's results also revealed that evasive and/or dominant leadership in particular creates barrier store solving conflict.

  • 2216.
    Aarøe, Mads
    Royal Institute of Art.
    (Untitled)2013Independent thesis Advanced level (degree of Master (Two Years)), 10 HE creditsStudent thesis
    Abstract [en]

    The work revolves aorund the notion of the artist as a jester. In 6 parts the text points to both (art) history and contemporary art. The form resembles to an extent the structuring of the later solo-exhibition and seeks to prevent a linear reading and as such, form becomes content.

  • 2217.
    Aas, AJ
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics.
    Mach, Henryk
    Borge, MJG
    Fogelberg, Birger
    Grant, IS
    Gulda, K
    Hagebo, E
    Kurcewicz, W
    Kvasil, J
    Lindroth, Axel
    Martinez, T
    Nosek, D
    Rubio, B
    Smith, JF
    Steffensen, K
    Tain, JL
    Tengblad, O
    Thorsteinsen, TF
    Enhanced and quenched B(E1) transition rates between parity doublet bands in Ra-2271996In: NUCLEAR PHYSICS A, ISSN 0375-9474, Vol. 611, no 2-3, p. 281-314Article in journal (Refereed)
    Abstract [en]

    The fast timing beta gamma gamma(t) method has been used to measure level lifetimes in the parity doublet bands in Ra-227 populated in the beta(-) decay of Fr-227. In particular, T-1/2 = 254(9) ps, 236(30) ps, less than or equal to 41 ps and 16(13) ps hav

  • 2218.
    Aas, AJ
    et al.
    Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Nuclear and Particle Physics.
    Mach, Henryk
    Kvasil, J
    Borge, MJG
    Fogelberg, Birger
    Grant, IS
    Gulda, K
    Hagebo, E
    Hoff, P
    Kurcewicz, W
    Lindroth, Axel
    Lovhoiden, G
    Mackova, A
    Martinez, T
    Rubio, B
    Sanchez-Vega, Maria
    Smith, JF
    Tain, JL
    Taylor, RBE
    Tengblad, O
    Thorsteinsen, TF
    Quenched E1 transition rates in Th-2311999In: NUCLEAR PHYSICS A, ISSN 0375-9474, Vol. 654, no 3-4, p. 499-522Article in journal (Refereed)
    Abstract [en]

    The fast timing beta gamma gamma(t) method has been used to measure lifetimes of the low-lying levels in Th-231 populated in the beta(-) decay of Ac-231. The half-life of the K-pi = 5/2(-) band-head at 185.7-keV was measured as T-1/2 = 1073(79) ps, yieldi

  • 2219.
    Aas, Egil
    et al.
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Arts, Department of Archaeology and Ancient History.
    Apel, Jan
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Arts, Department of Archaeology and Ancient History.
    Dock, Bo
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Arts, Department of Archaeology and Ancient History.
    Gamrell, Åsa
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Arts, Department of Archaeology and Ancient History.
    Lekberg, Per
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Arts, Department of Archaeology and Ancient History.
    Notelid, Michel
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Arts, Department of Archaeology and Ancient History.
    Reisborg, Synnöve
    Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Arts, Department of Archaeology and Ancient History.
    Undersökningar för Mälarbanans sträckning: Fältsäsongen 19921993In: TOR, ISSN 0495-8772, Vol. 25, p. 53-77Article in journal (Other (popular science, discussion, etc.))
  • 2220.
    Aas, Erik
    KTH, School of Engineering Sciences (SCI), Mathematics (Dept.), Mathematics (Div.).
    A Markov Process on Cyclic Words2014Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    The TASEP (totally asymmetric simple exclusion process) studied here is a Markov chain on cyclic words over the alphabet{1,2,...,n} given by at each time step sorting an adjacent pair of letters chosen uniformly at random. For example, from the word 3124 one may go to 1324, 3124, 3124, 4123 by sorting the pair 31, 12, 24, or 43.

    Two words have the sametype if they are permutations of each other. If we restrict TASEP to words of some particular type m we get an ergodic Markov chain whose stationary distribution we denote by ζm. Soζm (u) is the asymptotic proportion of time spent in the state u if the chain started in some word of type m. The distribution ζ is the main object of study in this thesis. This distribution turns out to have several remarkable properties, and alternative characterizations. It has previously been studied both from physical, combinatorial, and probabilitistic viewpoints.

    In the first chapter we give an extended summary of known results and results in this thesis concerning ζ. The new results are described (and proved) in detail in Papers I - IV.

    The new results in Papers I and II include an explicit formula for the value ofζat sorted words and a product formula for decomposable words. We also compute some correlation functions for ζ. In Paper III we study of a generalization of TASEP to Weyl groups. In Paper IV we study a certain scaling limit of ζ, finding several interesting patterns of which we prove some. We also study an inhomogenous version of TASEP, in which different particles get sorted at different rates, which generalizes the homogenous version in several aspects. In the first chapter we compute some correlation functions for ζ

  • 2221.
    Aas, Erik
    KTH, School of Engineering Sciences (SCI), Mathematics (Dept.), Mathematics (Div.).
    Limit points of the iterative scaling procedure2014In: Annals of Operations Research, ISSN 0254-5330, E-ISSN 1572-9338, Vol. 215, no 1, p. 15-23Article in journal (Refereed)
    Abstract [en]

    The iterative scaling procedure (ISP) is an algorithm which computes a sequence of matrices, starting from some given matrix. The objective is to find a matrix 'proportional' to the given matrix, having given row and column sums. In many cases, for example if the initial matrix is strictly positive, the sequence is convergent. It is known that the sequence has at most two limit points. When these are distinct, convergence to these two points can be slow. We give an efficient algorithm which finds the limit points, invoking the ISP only on subproblems for which the procedure is convergent.

  • 2222.
    Aas, Erik
    KTH, School of Engineering Sciences (SCI), Mathematics (Dept.), Mathematics (Div.).
    Stationary probability of the identity for the TASEP on a Ring2012Other (Other academic)
    Abstract [en]

    Consider the following Markov chain on permutations of length n. At each time step we choose a random position. If the letter at that position is smaller than the letter immediately to the left (cyclically) then these letters swap positions. Otherwise nothing happens, corresponding to a loop in the Markov chain. This is the circular TASEP. We compute the average proportion of time the chain spends at the identity permutation (and, in greater generality, at sorted words). This answers a conjecture by Thomas Lam.

  • 2223.
    Aas, Erik
    KTH, School of Engineering Sciences (SCI), Mathematics (Dept.), Mathematics (Div.).
    TASEP in any Weyl groupManuscript (preprint) (Other academic)
    Abstract [en]

    We investigate a Markov chain dened by Thomas Lam [6], whichgeneralizes the multi-type TASEP on a ring to any Weyl group. For groups of typeC we dene an analogue of the multiline queues of Ferrari and Martin (which com-pute the stationary distribution for the classical TASEP). While our constructiondoes not suce for nding the stationary distribution, the construction gives thestationary distribution of a certain projection of Lam's chain. Also, our approach isincremental, in the sense that the construction appears to t into a pattern of 'con-jugation matrices', which remains to be fully worked out. We conjecture an explicitformula for the partition function of the model. Finally, we prove a theorem for theclassical TASEP which ts into the picture of viewing TASEP in a permutation-freeway.

  • 2224.
    Aas, Erik
    et al.
    KTH, School of Engineering Sciences (SCI), Mathematics (Dept.), Mathematics (Div.).
    Linusson, Svante
    KTH, School of Engineering Sciences (SCI), Mathematics (Dept.), Mathematics (Div.).
    Continuous multiline queues and TASEPManuscript (preprint) (Other academic)
  • 2225.
    Aas, Erik
    et al.
    KTH, School of Engineering Sciences (SCI), Mathematics (Dept.).
    Linusson, Svante
    KTH, School of Engineering Sciences (SCI), Mathematics (Dept.).
    Continuous multi-line queues and TASEP2018In: ANNALES DE L INSTITUT HENRI POINCARE D, ISSN 2308-5827, Vol. 5, no 1, p. 127-152Article in journal (Refereed)
    Abstract [en]

    In this paper, we study a distribution Xi of labeled particles on a continuous ring. It arises in three different ways, all related to the multi-type TASEP on a ring. We prove formulas for the probability density function for some permutations and give conjectures for a larger class. We give a complete conjecture for the probability of two particles i, j being next to each other on the cycle, for which we prove some cases. We also find that two natural events associated to the process have exactly the same probability expressed as a Vandermonde determinant. It is unclear whether this is just a coincidence or a consequence of a deeper connection.

  • 2226.
    Aas, Erik
    et al.
    KTH, School of Engineering Sciences (SCI), Mathematics (Dept.), Mathematics (Div.).
    Sjöstrand, Jonas
    KTH, School of Engineering Sciences (SCI), Mathematics (Dept.), Mathematics (Div.).
    A product formula for the TASEP on a ring2016In: Random structures & algorithms (Print), ISSN 1042-9832, E-ISSN 1098-2418, Vol. 48, no 2, p. 247-259Article in journal (Refereed)
    Abstract [en]

    For a random permutation sampled from the stationary distributionof the TASEP on a ring, we show that, conditioned on the event that the rstentries are strictly larger than the last entries, the order of the rst entries isindependent of the order of the last entries. The proof uses multi-line queues asdened by Ferrari and Martin, and the theorem has an enumerative combinatorialinterpretation in that setting.As an application we prove a conjecture of Lam and Williams concerningSchubert factors of the stationary probability of certain states.Finally, we present a conjecture for the case where the small and large entriesare not separated.

  • 2227. Aas, Georges
    et al.
    Jovicevic, Jelena
    KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
    Kuwertz, Emma
    Lund-Jensen, Bengt
    KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
    Strandberg, Jonas
    KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
    et all.,
    Observation of Associated Near-Side and Away-Side Long-Range Correlations in root S-NN=5.02 TeV Proton-Lead Collisions with the ATLAS Detector2013In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 10, no 18, p. 182302-Article in journal (Refereed)
    Abstract [en]

    Two-particle correlations in relative azimuthal angle (Delta phi) and pseudorapidity (Delta eta) are measured in root S-NN = 5.02 TeV p + Pb collisions using the ATLAS detector at the LHC. The measurements are performed using approximately 1 mu b(-1) of data as a function of transverse momentum (p(T)) and the transverse energy (Sigma E-T(Pb)) summed over 3.1 < eta < 4.9 in the direction of the Pb beam. The correlation function, constructed from charged particles, exhibits a long-range (2 < vertical bar Delta eta vertical bar < 5) "near-side" (Delta phi similar to 0) correlation that grows rapidly with increasing Sigma E-T(Pb). A long-range "away-side" (Delta phi similar to pi) correlation, obtained by subtracting the expected contributions from recoiling dijets and other sources estimated using events with small Sigma E-T(Pb), is found to match the near-side correlation in magnitude, shape (in Delta eta and Delta phi) and Sigma E-T(Pb) dependence. The resultant Delta phi correlation is approximately symmetric about pi/2, and is consistent with a dominant cos2 Delta phi modulation for all Sigma E-T(Pb) ranges and particle p(T).

  • 2228.
    Aas, Gro Hanne
    Luleå tekniska universitet.
    Kvinneforskningspolitiske (pr)øvelser1999Licentiate thesis, comprehensive summary (Other academic)
    Abstract [no]

    Målsettingen for licentiatuppsatsen er å analysere nordisk kvinneforsknings formuleringer av forskningspolitiske felter, problemstillinger og utfordringer, og gjennom kontakt og diskusjon bidra til samarbeid, diskusjoner og offentlighet om forskingspolitikk i kvinneforskning. Arbeidet har tatt utgangspunkt i relativt nytt materiale fra Danmark, Norge og Sverige. I kap. 1 presenteres prosjektet, problemstillinger og materiale. Kapitlene 2-6 består av innledninger og artikler holdt eller skrevet i løpet av de to senaste åren. Diskusjoner om kjønn og akademia står i fokus i kap. 2 - "Universities have politics". I kap. 3, artikkelen "Gamle og nye drømmer", diskuteres et kvinneforskningspolitiske intervensjonsprosjekt som blev utført for en del år tilbake, og det antydes noen nye omdreiningspunkter for et slikt arbeid. Enkelte perspektiver utdypes i kap. 4, "Kvinneforskningens samfunnskontrakt", hvor termen "kvinneperspektiv" som forskningspolitisk term granskas krtitiskt. De to siste kapitlene tar utgangspunkt i den norske forskningsmeldingen som kom våren 1999. Ut fra tre lesestrategier forsøkes det leses muligheter for kvinneforskningspolitiske strategier. Det ses også på innholdet i regjeringens forskningspolitiske verdidebatt, og det diskuteres mulige intervensjoner i denne ut fra feministiske vitenskaps- og teknologistudier.

  • 2229. Aas, Jessica
    Immunhistokemiskt uttryck av neuroindokrina markörer i tumördiagnostik2004Independent thesis Basic level (professional degree)Student thesis
  • 2230.
    Aas, Lars
    Sophiahemmet University College.
    Dokumentation av sjuksköterskor hos patienter som försämras innan hjärtstopp på ett stort svenskt universitets sjukhus2013Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
  • 2231.
    Aas, Marit
    et al.
    Oslo universitet.
    Blom, Thomas
    Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Department of Educational Studies (from 2013).
    Benchlearning as professional development of school leaders in Norway and Sweden2018In: Professional Development in Education, ISSN 1941-5257, E-ISSN 1941-5265, Vol. 44, no 1, p. 62-75Article in journal (Refereed)
    Abstract [en]

    In this paper, we investigate a new national collaborative Benchlearning program for principals in Norway and Sweden. Four process leaders have been running the program. The aim is to give the participants the knowledge to develop a leadership practice and school environment that are more innovative. The program includes theoretical inputs, sharing experiences, school visits, training, and trialing of new leadership practices. Drawing on data from surveys, participants’ reflections, and the leaders’ descriptions of new leadership practice, we examine and identify successful and critical aspects of the learning process. The findings show that principals’ motivation and willingness to start change processes can be created in a synergy between structured school visits, work in learning groups, and a theoretical foundation. Working in groups across schools in two countries seems to enhance principals’ sense of efficacy, which in turn is shown to have a positive effect on their willingness to trial new practices. Two implications of the study are suggested. First, in the design of principal programs, systematic and critical reflection about authentic practice should be the basis. Second, educators should be trained to be process leaders who can support principals’ learning during a critical and social construction of a new practice.

  • 2232.
    Aas, Marit
    et al.
    Oslo universitet.
    Törnsen, Monika
    Umeå University, Faculty of Social Sciences, Centre for Principal Development.
    Norske og svenske skolelederprogram: en sammenligning2016In: Bedre Skole, ISSN 0802-183X, no 2, p. 56-61Article in journal (Other academic)
    Abstract [no]

    De nasjonale lederprogrammene i Sverige og Norge blir sammenlignet ved hjelp av et forskningsbasert internasjonalt rammeverk for hva som kjennetegner god ledelse. Målet er å undersøke om og i hvilken grad de nordiske programmene er influert av internasjonal forskning om profesjonsutvikling av skoleledere. Noen områder for videreutvikling av de nordiske lederprogrammene blir foreslått.

  • 2233.
    Aas, Marit
    et al.
    Oslo universitet.
    Törnsén, Monika
    Umeå University, Faculty of Social Sciences, Centre for Principal Development.
    Examining Norwegian and Swedish Leadership training programs in light of international research2016In: Nordic Studies in Education, ISSN 1891-5914, E-ISSN 1891-5949, Vol. 36, no 2, p. 173-187, article id 10.18261Article in journal (Refereed)
    Abstract [en]

    This article examines and compares principal training programs in Sweden and Norway, the two Nordic countries with national leadership programs for already active school leaders. To investigate the knowledge base and design of the programs we draw on two research-derived tools about successful professional learning programs for school leaders. Based on the examinations, we suggest that the programs reflect international research both in terms of content and process factors. In addition, we identify topics and issues, such as balancing democratic participation with managerial decision-making, which can be characterized as making up a Nordic profile.

  • 2234.
    Aas, Sigrid
    Nordic Council of Ministers, Nordic School of Public Health NHV.
    Foreldreerfaringer med barnehabilitering.: En brukerundersøkelse i Nord-Trøndelag med The Measure of Processes of Care.2008Independent thesis Advanced level (degree of Master (Two Years))Student thesis
    Abstract [en]

    Aim: To explore experiences with professional services among parents of disabled children in contact with Childrens Habilitation Department in Nord-Trøndelag, Norway.

    Method: A descriptive cross-sectional survey among parents, who’s children received services from the Childrens Habilitation Department during one year, was done. MPOC-20 NO, a questionnaire developed for this target group and translated into norwegian, was used. It consists of five factors: enabling/partnership, general information, spesific information, co-ordinated/comprehensive care and respectful/supportive care. Each factor consists of 3 – 5 questions.

    Results: The respons rate was 54,5%, parents of children with severe disabilities were overrepresented. Thus the results should be interpreted with care. The mean score on general information was lower than on other factors. The mean scores in Nord-Trøndelag was generally lower than in Canada, but about the same as results from Uppsala, Sweden.

    Parents of children under 6 years had better experiences than parents with older children. Parents with children with minor disabilities were more satisfied than others. Parents under 36 years and mothers had better experiences than older parents and fathers. Parents living together with their child less than 11 days/month were less satisfied than others. Having a key worker and/or an individual service plan made a positive difference on information factors, but not on the other factors.

    Conclusion: The answers showed that certain areas and qualities of the departments service should be better developed and some groups of parents should get a service delivery more fitted to their needs. Other methods should be considered to recruite parents and collect anwers to ensure a higher response rate.

  • 2235.
    Aas, Steffen
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Real Estate and Construction Management.
    Hillestad, Thomas
    KTH, School of Architecture and the Built Environment (ABE), Real Estate and Construction Management.
    Verdivurdering av næringseiendom - hva brukes av aktørene i markedet?: - Er det behov for en verdivurderingsstandard i det norske markedet? 2015Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
  • 2236.
    Aas, Tor Helge
    et al.
    University of Agder, Norway.
    Hjemdahl, Kirsti
    University of Agder, Norway.
    Högberg, Johan
    Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Service Research Center (from 2013).
    Nordgård, Daniel
    University of Agder, Norway.
    Olsson Ramberg, Marcus
    Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Service Research Center (from 2013).
    Wästlund, Erik
    Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Service Research Center (from 2013).
    Contextualizing mobile advertisement using location based services: A field experiment2019Conference paper (Other academic)
  • 2237. Aas, W.
    et al.
    Tsyro, S.
    Bieber, E.
    Bergström, Robert
    SMHI, Research Department, Air quality.
    Ceburnis, D.
    Ellermann, T.
    Fagerli, H.
    Froelich, M.
    Gehrig, R.
    Makkonen, U.
    Nemitz, E.
    Otjes, R.
    Perez, N.
    Perrino, C.
    Prevot, A. S. H.
    Putaud, J. -P
    Simpson, D.
    Spindler, G.
    Vana, M.
    Yttri, K. E.
    Lessons learnt from the first EMEP intensive measurement periods2012In: Atmospheric Chemistry And Physics, ISSN 1680-7316, E-ISSN 1680-7324, Vol. 12, no 17, p. 8073-8094Article in journal (Refereed)
    Abstract [en]

    The first EMEP intensive measurement periods were held in June 2006 and January 2007. The measurements aimed to characterize the aerosol chemical compositions, including the gas/aerosol partitioning of inorganic compounds. The measurement program during these periods included daily or hourly measurements of the secondary inorganic components, with additional measurements of elemental- and organic carbon (EC and OC) and mineral dust in PM1, PM2.5 and PM10. These measurements have provided extended knowledge regarding the composition of particulate matter and the temporal and spatial variability of PM, as well as an extended database for the assessment of chemical transport models. This paper summarise the first experiences of making use of measurements from the first EMEP intensive measurement periods along with EMEP model results from the updated model version to characterise aerosol composition. We investigated how the PM chemical composition varies between the summer and the winter month and geographically. The observation and model data are in general agreement regarding the main features of PM10 and PM2.5 composition and the relative contribution of different components, though the EMEP model tends to give slightly lower estimates of PM10 and PM2.5 compared to measurements. The intensive measurement data has identified areas where improvements are needed. Hourly concurrent measurements of gaseous and particulate components for the first time facilitated testing of modelled diurnal variability of the gas/aerosol partitioning of nitrogen species. In general, the modelled diurnal cycles of nitrate and ammonium aerosols are in fair agreement with the measurements, but the diurnal variability of ammonia is not well captured. The largest differences between model and observations of aerosol mass are seen in Italy during winter, which to a large extent may be explained by an underestimation of residential wood burning sources. It should be noted that both primary and secondary OC has been included in the calculations for the first time, showing promising results. Mineral dust is important, especially in southern Europe, and the model seems to capture the dust episodes well. The lack of measurements of mineral dust hampers the possibility for model evaluation for this highly uncertain PM component. There are also lessons learnt regarding improved measurements for future intensive periods. There is a need for increased comparability between the measurements at different sites. For the nitrogen compounds it is clear that more measurements using artefact free methods based on continuous measurement methods and/or denuders are needed. For EC/OC, a reference methodology (both in field and laboratory) was lacking during these periods giving problems with comparability, though measurement protocols have recently been established and these should be followed by the Parties to the EMEP Protocol. For measurements with no defined protocols, it might be a good solution to use centralised laboratories to ensure comparability across the network. To cope with the introduction of these new measurements, new reporting guidelines have been developed to ensure that all proper information about the methodologies and data quality is given.

  • 2238.
    Aas, Wenche
    KTH, Superseded Departments, Chemistry.
    Constitution, dynamics and structure of binary and ternary actinide complexes1999Doctoral thesis, comprehensive summary (Other scientific)
    Abstract [en]

    Stoichiometry, ligand exchange reactions, coordinationgeometry and stability of complexes of type UO2LpFq(H2O)3-n(p= 1–2,q= 1-3), where L is one of the bidentate ligandspicolinate, oxalate, carbonate or acetate have beeninvestigated using single crystal X-ray diffraction, an arrayof19F-,13C-,17O- and1H-NMR techniques and potentiometric titration usingboth F-and H+selective electrodes. The experiments wereperformed in a 1.00 M NaClO4medium. The equilibrium constants were determinedat 25°C while most of the kinetic experiments were done at- 5°C. The equilibrium constants for the stepwise additionof F-to UO2L and UO2L2indicates that the prior coordination of L toU(VI) has a fairly small effect on the subsequent bonding offluoride, except for a statistical effect determined by thenumber of available coordination sites. This indicates thatternary complexes might be important for the speciation andtransport of hexavalent actinides in ground and surface watersystems. A single crystal structure of UO2(picolinate)F32-has been determined showing the same pentagonalbipyramidal symmetry as in aqueous solution studied by NMR. Theexchangeable donor atoms are situated in a plane perpendicularto the linear uranyl group. The complexes show a variety ofdifferent exchange reactions depending on the ligand used. Ithas been possible to quantify external fluoride and the otherligands exchange reactions as well asintra-molecular reactions. This type of detailedinformation has not been observed in aqueous solution before.Water takes a critical part in the exchange mechanism, and whenit is eliminated from the inner coordination sphere a muchslower kinetics can be observed.19F-NMR has showed to be a powerful technique tostudy these reactions, both because of the sensitivity of thisNMR nucleus and also the possibility to observe reactions wherefluoride is not directly involved in the mechanism. TernaryTh(edta)F1-2and (UO2)2(edta)2F1-4have been investigated using1H and19F-NMR. The fluoride complexation to Cm(III) wasstudied using time resolved fluorescence spectroscopy (TRLFS)and the stability constant for the CmF2+complex was determined at 25°C in 1.0 mNaCl.

    Keywords. Ternary complexes, actinides,dioxouranium(VI), curium(III), thorium(IV), ligand exchange,isomers, NMR, potentiometric titrations, aqueous solution,oxalate, picolinate, acetate, EDTA.

  • 2239.
    Aasa, Agneta
    et al.
    Linköping University, Department of Medical and Health Sciences, Nursing Science. Linköping University, Faculty of Health Sciences.
    Hovbäck, Malin
    Linköping University, Department of Medical and Health Sciences, Nursing Science. Linköping University, Faculty of Health Sciences.
    Det preoperativa informationssamtalets betydelse för patientens delaktighet i sin vård inom kolorektalkirurgi2011Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Bakgrund: ERAS (Enhanced Recovery After Surgery) är ett standardiserat multimodalt vårdprogram vid elektiv kolorektalkirurgi, som syftar till snabbare återhämtning och kortare vårdtider genom ett tvärprofessionellt samarbete.  En vecka innan planerad operation träffar sjuksköterskan patienten för ett samtal om vårdförloppet.

     

    Syfte: Att identifiera och beskriva patientens upplevelse av sjuksköterskans ERAS- samtal och dess betydelse för patientens delaktighet i sin vård. 

     

    Metod: Datainsamlingen skedde genom kvalitativa intervjuer. Tolv patienter, nio män och tre kvinnor har intervjuats. De ljudinspelade samtalen har transkriberats ordagrant och analyserats med hjälp av tolkande fenomenologisk analys (Interpretative Phenomenological Analysis).

     

    Resultat: Analysarbetet resulterade i fem olika teman; bli sedd, trygghet, tillit, ansvar samt delaktighet. Alla teman relaterar till varandra och illustrerar en positiv och en negativ sida av den upplevda erfarenheten. Tillsammans bildar en helhet av upplevelsen; ERAS- samtalet och dess betydelse för patientens delaktighet.

     

    Konklusion: Resultatet visar att patienterna känner sig sedda under informationssamtalet. Det är viktigt att bekräfta patienten och knyta an mer till informationssamtalet under vårdtiden för att patienterna ska vara delaktiga och ta eget ansvar. Tilliten till vårdpersonalen har betydelse för att patienterna ska känna trygghet. Studien visar att ERAS- samtalet upplevs strukturerat och individuellt men informationen måste följa patienterna under hela vårdtillfället.

  • 2240.
    Aasa, Agneta
    et al.
    Kirurgmottagningen, Ryhovs Länssjukhus, Jönköping, Sweden.
    Hovbäck, Malin
    Kirurgmottagningen, Ryhovs Länssjukhus, Jönköping, Sweden.
    Berterö, Carina
    Linköping University, Department of Medical and Health Sciences, Nursing Science. Linköping University, Faculty of Health Sciences.
    The importance of preoperative information for patient participation in colorectal surgery care2013In: Journal of Clinical Nursing, ISSN 0962-1067, E-ISSN 1365-2702, Vol. 22, no 11-12, p. 1604-1612Article in journal (Refereed)
    Abstract [en]

    Aims and objectives

    To identify and describe patients' experiences of a preoperative information session with a nurse, as part of the enhanced recovery after surgery (ERAS) concept, and its impact on patient participation in their own care.

    Background

    Enhanced recovery after surgery is a standardised, multimodal treatment programme for elective colorectal surgery, leading to faster recovery and shorter hospital stays via interprofessional collaboration. The ERAS concept is initiated for patients a week before surgery when the patient receives detailed information about the care process during a meeting with a nurse.

    Design

    The study is a qualitative interpretive study based on interviews.

    Methods

    Twelve patients, nine men and three women, were interviewed. The interviews were transcribed verbatim and analysed using interpretive phenomenological analysis (IPA).

    Results

    The analysis identified and formulated five themes: being seen, security, trust, responsibility and participation. All themes are closely related and illustrate positive and negative sides of the patient's experience. They hang together and form a complete set of experiences: ERAS conversation and its impact on patients' participation.

    Conclusions

    The results show that patients feel confirmed in the ERAS conversation. Healthcare professionals need to be bonding more information call during hospitalisation. It is important to confirm the patient in order for them to participate and take responsibility. Reliance on caregivers is important for patients to feel safe and to participate in their own care. This study shows that the ERAS conversation was experienced as being structured and individually tailored, but the information must apply to the patients throughout the period of care.

    Relevance to clinical practice

    Some shortcomings have been revealed, which should enable improvement in the care of patients. Healthcare professionals need to raise awareness of patients' responsibilities for participation in their own recovery and care. Healthcare professionals and patients need to be aware of each other's responsibilities.

  • 2241. Aasa, Anna-Karin
    et al.
    Broström, Petter
    Närståendes upplevelse av bemötande från vårdpersonal på en akutpsykiatrisk avdelning2009Independent thesis Advanced level (professional degree), 10 credits / 15 HE creditsStudent thesis
  • 2242. Aasa, Anna-Karin
    et al.
    Tervaniemi, Anita
    Upplevelsen av att leva med Alzheimers sjukdom i ett tidigt skede: en litteraturstudie2007Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
  • 2243.
    Aasa, Björn
    et al.
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Orthopaedics. Norrlandsklinikens hälsocentral, Umeå, Sweden.
    Berglund, Lars
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy. Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Orthopaedics.
    Michaelson, Peter
    Luleå Tekniska Universitet, Institutionen för hälsovetenskap, Avdelningen för hälsa och rehabilitering, Fysioterapi.
    Aasa, Ulrika
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Individualized low-load motor control exercises and education versus a high-load lifting exercise and education to improve activity, pain intensity, and physical performance in patients with low back pain: a randomized controlled trial2015In: Journal of Orthopaedic and Sports Physical Therapy, ISSN 0190-6011, E-ISSN 1938-1344, Vol. 45, no 2, p. 77-85Article in journal (Refereed)
    Abstract [en]

    Study Design Randomized controlled trial. Background Low back pain is a common disorder. Patients with low back pain frequently have aberrant and pain-provocative movement patterns that often are addressed with motor control exercises. Objective To compare the effects of low-load motor control (LMC) exercise and those of a high-load lifting (HLL) exercise. Methods Seventy participants with recurrent low back pain, who were diagnosed with nociceptive mechanical pain as their dominating pain pattern, were randomized to either LMC or HLL exercise treatments. Participants were offered 12 treatment sessions over an 8-week period. All participants were also provided with education regarding pain mechanisms. Methods Participants were assessed prior to and following treatment. The primary outcome measures were activity (the Patient-Specific Functional Scale) and average pain intensity over the last 7 days (visual analog scale). The secondary outcome measure was a physical performance test battery that included 1 strength, 3 endurance, and 7 movement control tests for the lumbopelvic region. Results Both interventions resulted in significant within-group improvements in pain intensity, strength, and endurance. The LMC group showed significantly greater improvement on the Patient-Specific Functional Scale (4.2 points) compared with the HLL group (2.5 points) (P<.001). There were no significant between-group differences in pain intensity (P = .505), strength, and 1 of the 3 endurance tests. However, the LMC group showed an increase (from 2.9 to 5.9) on the movement control test subscale, whereas the HLL group showed no change (from 3.9 to 3.1) (P<.001). Conclusion An LMC intervention may result in superior outcomes in activity, movement control, and muscle endurance compared to an HLL intervention, but not in pain intensity, strength, or endurance.

  • 2244.
    Aasa, Björn
    et al.
    Department of Orthopaedics, Surgical and Perioperative Sciences, Umeå University, Norrlandsklinikens hälsocentral, Umeå.
    Berglund, Lars
    Department of Community Medicine and Rehabilitation, Physiotherapy, Umeå University.
    Michaelson, Peter
    Luleå University of Technology, Department of Health Sciences, Health and Rehab.
    Aasa, Ulrika
    Umeå University, Department of Community Medicine and Rehabilitation.
    Individualized Low-Load Motor Control Exercises and Education Versus a High-Load Lifting Exercise and Education to Improve Activity, Pain Intensity, and Physical Performance in Patients With Low Back Pain: A Randomized Controlled Trial2015In: Journal of Orthopaedic and Sports Physical Therapy, ISSN 0190-6011, E-ISSN 1938-1344, Vol. 45, no 2, p. 77-85Article in journal (Refereed)
    Abstract [en]

    Study DesignRandomized controlled trial. BackgroundLow back pain is a common disorder. Patients with low back pain frequently have aberrant and pain-provocative movement patterns that often are addressed with motor control exercises. ObjectiveTo compare the effects of low-load motor control (LMC) exercise and those of a high-load lifting (HLL) exercise. MethodsSeventy participants with recurrent low back pain, who were diagnosed with nociceptive mechanical pain as their dominating pain pattern, were randomized to either LMC or HLL exercise treatments. Participants were offered 12 treatment sessions over an 8-week period. All participants were also provided with education regarding pain mechanisms. MethodsParticipants were assessed prior to and following treatment. The primary outcome measures were activity (the Patient-Specific Functional Scale) and average pain intensity over the last 7 days (visual analog scale). The secondary outcome measure was a physical performance test battery that included 1 strength, 3 endurance, and 7 movement control tests for the lumbopelvic region. ResultsBoth interventions resulted in significant within-group improvements in pain intensity, strength, and endurance. The LMC group showed significantly greater improvement on the Patient-Specific Functional Scale (4.2 points) compared with the HLL group (2.5 points) (P<.001). There were no significant between-group differences in pain intensity (P = .505), strength, and 1 of the 3 endurance tests. However, the LMC group showed an increase (from 2.9 to 5.9) on the movement control test subscale, whereas the HLL group showed no change (from 3.9 to 3.1) (P<.001). ConclusionAn LMC intervention may result in superior outcomes in activity, movement control, and muscle endurance compared to an HLL intervention, but not in pain intensity, strength, or endurance. Registered at ClinicalTrials.gov (NCT01061632).

  • 2245.
    Aasa, Björn
    et al.
    Norrlandsklinikens hälsocentral, Umeå.
    Hellqvist, Jonas
    Umeå University, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Berglund, Lars
    Umeå University, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Michaelson, Peter
    Luleå University of Technology, Department of Health Sciences, Health and Rehab. peter.michaelson@ltu.se .
    Aasa, Ulrika
    Umeå University, Department of Community Medicine and Rehabilitation, Physiotherapy.
    A characterisation of pain, disability, kinesiophobia and physical capacity in patients with predominantly peripherally mediated mechanical low back pain2011In: Physiotherapy, ISSN 0031-9406, E-ISSN 1873-1465, Vol. 97, no Suppl. 1Article in journal (Refereed)
    Abstract [en]

    Purpose: The specific objectives were to: 1) describe the level of pain intensity, disability, activity limitation, kinesiophobia and physical capacity in patients with predominantly peripherally mediated mechanical back pain, and 2) investigate whether differences between these patients in physical and psychosocial factors can be distinguished when the patients are further sub-grouped.Relevance: To improve assessment among patients with chronic low back pain (CLBP) it is important to investigate the prevalence of physical and psychosocial features in homogenous sub-groups.Participants: Seventy-one patients with CLBP, 20-60 years old, with peripherally mediated mechanical pain at the the moment for the study, were included and each patient was sub-classified into one of five sub-groups based on their pain behaviour and functional movement pattern (flexion n=20, flexion/lateral shift, n=11, active extension n=23 , passive extension n=8, and multidirectional pattern n=9).Methods: Data on pain intensity (Visual Analogue Scale), disability (the Roland and Morris Questionnaire), activity limitation (the Patient Specific Functional Scale), kinesiophobia (the Tampa Scale of Kinesiophobia) and physical capacity (lifting capacity and trunk extensor endurance) was collected.Analysis: Mean and standard deviation for parametric and median and interquartile range for non-parametric data were used for descriptive statistics. One-way ANOVA for normally distributed data and Kruskal-Wallis for non-normally distributed data were used for analyses of differences between the sub-groups. The subjects were also divided into two age-groups (20-40 and 41-60 years) and measures of physical capacity were compared to women and men at the ages of 34 and 50, respectively, in the general Swedish population using one sample T-test.Results: The patients reported low to moderate pain intensity (3.1/10±2.4), disability (RMDQ (7.27/24 ±4.2) and kinesiophobia (33.4/68 ±7) and these levels were lower than reported levels in other studies including more heterogenous groups of patients with CLBP. The patiens reported activity limitations (PSFS 13/30±23). Lifting capacity and trunk extensor endurance were significantly lower than in the general population in the youngest age-group. No significant differences in pain intensity, disability, kinesiophobia or physical capacity were found between the sub-groups.Conclusions: This research highlights that patients with predominantly peripherally mediated mechanical back pain may differ from other sub-groups of patients with CLBP (e.g., patients with central sensitization as dominating pain mechanism) regarding physical and psychosocial factors. The individual variation in pain intensity, disability, kinesiophbia and physical capacity among the patients indicates the importance to assess these factors in every patient. Due to the fact that there were few patients in the sub-groups, further research is necessary to explore whether there are differences, that we were not able to disingjish, between patients with different movement patterns.

  • 2246.
    Aasa, Björn
    et al.
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Orthopaedics.
    Hellqvist, Jonas
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Berglund, Lars
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Michaelson, Peter
    Luleå Tekniska Universitet, Institutionen för hälsovetenskap, Avdelningen för hälsa och rehabilitering, Fysioterapi.
    Aasa, Ulrika
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    A characterisation of pain, disability, kinesiophobia and physical capacity in patients with predominantly peripherally mediated mechanical low back pain2011Conference paper (Refereed)
  • 2247.
    Aasa, Björn
    et al.
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Orthopaedics. Norrlandskliniken, Umeå.
    Lundström, Lena
    Pain Rehabilitation, Norrlands University Hospital, Umeå.
    Papacosta, Daniel
    Norrlandskliniken, Umeå.
    Sandlund, Jonas
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Aasa, Ulrika
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Do we see the same movement impairments?: the inter-rater reliability of movement tests for experienced and novice physiotherapists2014In: European Journal of Physiotherapy, ISSN 2167-9169, E-ISSN 2167-9177, Vol. 16, no 16, p. 173-182, article id 3Article in journal (Refereed)
    Abstract [en]

    Study design: Inter-rater reliability study. Background: Physiotherapists (PTs) use clinical tests including movement tests to identify faulty movement patterns. Aims: To investigate the inter-rater-reliability of active movement tests in the cervical spine, shoulder joint and scapulo-thoracic joint, and to describe the reasons for judgment of a positive test. Methodology: Four PTs, two experienced and two recently educated (novice), rated performance of five movement tests for 36 participants. Twenty-one of the participants were patients under treatment because of neck and/or shoulder problems, while 15 participants declared no problem from this region of the body. All tests were video recorded and the ratings were done by observing the video recordings. First, the PTs judged the tests as negative (the movement being ideally performed) or positive (the movement not being ideally performed). Then, the PTs described why the movements that they judged positive were not being ideally performed, using a predefined protocol, which represented different movement quality aspects. The inter-rater reliability was calculated for each test using Kappa statistics between the two experienced and the two novice PTs, respectively, and between each of the experienced and each of the novice PTs. Major findings: The experienced PTs had a higher inter-rater reliability than the novice PTs. The reasons for considering a movement test being positive differed highly between the (novice) PTs. Principal conclusion: This study supports previous studies concluding that the observation of active movement tests is reliable when assessed by experienced PTs. Novice PTs might benefit from further supervision.

  • 2248.
    Aasa, Björn
    et al.
    Department of Orthopaedics, Surgical and Perioperative Sciences, Umeå University, Norrlandsklinikens hälsocentral, Umeå.
    Sandlund, Jonas
    Michaelson, Peter
    Luleå University of Technology, Department of Health Sciences, Health and Rehab.
    Aasa, Ulrika
    Umeå University, Department of Community Medicine and Rehabilitation.
    Low- versus high-load motor control exercise to reduce disability in patients with persistent peripherally mediated mechanical low back pain2012In: Rendez vous of hands and minds: 10th International Federation of Orthopaedic Manipulative Physical Therapists’ World conference, Quebec,  1-5 Oct 2012, 2012, no 2Conference paper (Refereed)
  • 2249. Aasa, Elina
    et al.
    Wikström, Madeleine
    Hur nyttjas och upplevs friskvårdsinsatserna inom en kommun i norra Sverige?: En enkätundersökning med kvalitativt inslag2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Background: In today's society there are increasing demands for performance and efficiency, not least of all in the public sector. Wellness efforts can strengthen employees health and well-being, which is crucial for job performance. Purpose: The purpose of the study was to investigate whether employees in three sectors in one municipality in the north of Sweden had knowledge and utilized wellness initiatives, and how they felt that wellness efforts affected their health. Method: The data collection consisted of a questionnaire that was distributed in two ways, by web and by paper. The questionnaire contained 24 questions, 19 questions with fixed answers and 5 open questions. Sample: The sample of the study consisted of all employees who were 18 years or older in the areas of group housing, day care and psychiatry. All departments are included in the occupation area of support and care. A total of 47 people participated of which 30 were women and 17 men.Results: 92 % were aware that they were offered some kind of wellness effort but only 52 % utilized any wellness initiative that the employer offered. Of those who used the wellness initiative 48 % were satisfied and 52 % were not satisfied. Wellness allowance was the most used wellness initiative, which most utilized for gym membership. The majority of employees wanted a fitness hour during paid working hours. Conclusion: The study showed that most employees do not occupy any wellness initiative although many were aware that they were offered. Most of them wanted more joint activities, including training during working hours.

  • 2250. Aasa, Gabriella
    et al.
    Gillsparr, Malin
    Självkänsla och självaktning: ett försök att öka självkänsla och självaktning hos flickor i årskurs fyra genom gruppstärkande övningar2003Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
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