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Search for new phenomena in high-mass diphoton final states using 37 fb−1 of proton–proton collisions collected at √s=13 TeV with the ATLAS detector
Université Mohamed Premier, Faculté des Sciences; LPTPM, Oujda.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.ORCID iD: 0000-0002-1253-8583
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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Number of Authors: 29042017 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 775, p. 105-125Article in journal (Refereed) Published
Abstract [en]

Searches for new phenomena in high-mass diphoton final states with the ATLAS experiment at the LHC are presented. The analysis is based on pp collision data corresponding to an integrated luminosity of 36.7 fb−1 at a centre-of-mass energy √s=13 TeV recorded in 2015 and 2016. Searches are performed for resonances with spin 0, as predicted by theories with an extended Higgs sector, and for resonances with spin 2, using a warped extra-dimension model as a benchmark model, as well as for non-resonant signals, assuming a large extra-dimension scenario. No significant deviation from the Standard Model is observed. Upper limits are placed on the production cross section times branching ratio to two photons as a function of the resonance mass. In addition, lower limits are set on the ultraviolet cutoff scale in the large extra-dimensions model

Place, publisher, year, edition, pages
2017. Vol. 775, p. 105-125
National Category
Subatomic Physics Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:uu:diva-343850DOI: 10.1016/j.physletb.2017.10.039ISI: 000417190700016OAI: oai:DiVA.org:uu-343850DiVA, id: diva2:1187043
Funder
Swedish Research CouncilEU, European Research CouncilEU, FP7, Seventh Framework ProgrammeEU, Horizon 2020German Research Foundation (DFG)
Note

ATLAS Collaboration, for complete list of authors see https://doi.org/10.1016/j.physletb.2017.10.039

Available from: 2018-03-02 Created: 2018-03-02 Last updated: 2018-03-02Bibliographically approved

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Bergeås, Elin KuutmannBokan, PetarBrenner, RichardEkelöf, TordEllert, MattiasFerrari, ArnaudGradin, P.O. JoakimIsacson, Max F.Mårtensson, Mikael U.F.Öhman, HenrikRangel-Smith, CamillaSales De Bruin, Pedro H.
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