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Scientific article
Open access
English

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

ContributorsATLAS Collaboration
Published inPhysics Letters. B, vol. 775, p. 105-125
Collection
  • Open Access - SCOAP3
Publication date2017
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 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.

Citation (ISO format)
ATLAS Collaboration. 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. In: Physics Letters. B, 2017, vol. 775, p. 105–125. doi: 10.1016/j.physletb.2017.10.039
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Article (Published version)
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ISSN of the journal0370-2693
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