Search for new phenomena in photon+jet events collected in proton--proton collisions at sqrt(s) = 8 TeV with the ATLAS detector

Philip James Clark, Victoria Jane Martin, Corrinne Mills, Atlas Collaboration

Research output: Contribution to journalArticlepeer-review

Abstract

This Letter describes a model-independent search for the production of new resonances in photon + jet ( γ+jet ) events using 20 fb −1 of proton–proton LHC data recorded with the ATLAS detector at a centre-of-mass energy of s=8 TeV . The γ+jet mass distribution is compared to a background model fit from data; no significant deviation from the background-only hypothesis is found. Limits are set at 95% credibility level on generic Gaussian-shaped signals and two benchmark phenomena beyond the Standard Model: non-thermal quantum black holes and excited quarks. Non-thermal quantum black holes are excluded below masses of 4.6 TeV and excited quarks are excluded below masses of 3.5 TeV.
Original languageEnglish
Article numberAad:2013cva
Pages (from-to)562-578
JournalPhysics Letters B
VolumeB728
DOIs
Publication statusPublished - 20 Jan 2014

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