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Search for single b*-quark production with the ATLAS detector at root s=7 TeV
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
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2013 (English)In: Physics Letters B, ISSN 0370-2693, Vol. 721, no 4-5, 171-189 p.Article in journal (Refereed) Published
Abstract [en]

The results of a search for an excited bottom-quark b* in pp collisions at root s = 7 TeV, using 4.7 fb(-1) of data collected by the ATLAS detector at the LHC are presented. In the model studied, a single b*-quark is produced through a chromomagnetic interaction and subsequently decays to a W boson and a top quark. The search is performed in the dilepton and lepton + jets final states, which are combined to set limits on b*-quark couplings for a range of b*-quark masses. For a benchmark with unit size chromomagnetic and Standard Model-like electroweak b* couplings, b* quarks with masses less than 870 GeV are excluded at the 95% credibility level

Place, publisher, year, edition, pages
2013. Vol. 721, no 4-5, 171-189 p.
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Natural Sciences
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URN: urn:nbn:se:uu:diva-200760DOI: 10.1016/j.physletb.2013.03.016ISI: 000318055900001OAI: oai:DiVA.org:uu-200760DiVA: diva2:624922
Note

ATLAS Collaboration, for complete list of authors see http://dx.doi.org/10.1016/j.physletb.2013.03.016

Available from: 2013-06-03 Created: 2013-06-03 Last updated: 2013-07-05Bibliographically approved

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Brenner, RichardBuszello, Claus P.Coniavitis, EliasEkelöf, TordEllert, MattiasFerrari, ArnaudIsaksson, CharlieMadsen, AlexanderPelikan, Daniel
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High Energy Physics
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Physics Letters B
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