Search for new phenomena in high-mass diphoton final states using 37 fb<SUP>-1</SUP> of proton-proton collisions collected at √<i>s</i>=13 TeV with the ATLAS detector



Aaboud, M, Aad, G, Abbott, B, Abdinov, O, Abeloos, B, Abidi, SH, AbouZeid, OS, Abraham, NL, Abramowicz, H, Abreu, H
et al (show 2884 more authors) (2017) Search for new phenomena in high-mass diphoton final states using 37 fb<SUP>-1</SUP> of proton-proton collisions collected at √<i>s</i>=13 TeV with the ATLAS detector. PHYSICS LETTERS B, 775. pp. 105-125.

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Abstract

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 $\sqrt{s}=13$ 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.

Item Type: Article
Additional Information: 34 pages in total, author list starting page 18, 4 figures, 3 tables, published in Phys. Lett. B, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2016-17/
Uncontrolled Keywords: hep-ex, hep-ex
Depositing User: Symplectic Admin
Date Deposited: 18 Dec 2017 09:13
Last Modified: 05 Oct 2023 22:56
DOI: 10.1016/j.physletb.2017.10.039
Open Access URL: http://doi.org/10.1016/j.physletb.2017.10.039
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3014282