标题：Search for new phenomena with photon+jet events in proton-proton collisions at √s = 13 TeV with the ATLAS detector
作者：The ATLAS collaboration; Aad G.; Abbott B.; Abdallah J.; Abdinov O.; Abeloos B.; Aben R.; Abolins M.;等 更多 作者机构：[The ATLAS collaboration] CERN, Geneva 23, CH-1211, Switzerland;[ Aad, G] CPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, France;[ Abbott, B 更多
通讯作者：The ATLAS collaboration; CERNSwitzerland;(firstname.lastname@example.org)
来源：Journal of High Energy Physics
摘要：Abstract: A search is performed for the production of high-mass resonances decaying into a photon and a jet in 3.2 fb−1of proton-proton collisions at a centre-of-mass energy of (Formula presented.) TeV collected by the ATLAS detector at the Large Hadron Collider. Selected events have an isolated photon and a jet, each with transverse momentum above 150 GeV. No significant deviation of the γ+jet invariant mass distribution from the background-only hypothesis is found. Limits are set at 95% confidence level on the cross sections of generic Gaussian-shaped signals and of a few benchmark phenomena beyond the Standard Model: excited quarks with vector-like couplings to the Standard Model particles, and non-thermal quantum black holes in two models of extra spatial dimensions. The minimum excluded visible cross sections for Gaussian-shaped resonances with width-to-mass ratios of 2% decrease from about 6 fb for a mass of 1.5 TeV to about 0.8 fb for a mass of 5 TeV. The minimum excluded visible cross sections for Gaussian-shaped resonances with width-to-mass ratios of 15% decrease from about 50 fb for a mass of 1.5 TeV to about 1.0 fb for a mass of 5 TeV. Excited quarks are excluded below masses of 4.4 TeV, and non-thermal quantum black holes are excluded below masses of 3.8 (6.2) TeV for Randall-Sundrum (Arkani-Hamed-Dimopoulous-Dvali) models with one (six) extra dimensions.[Figure not available: see fulltext.] © 2016, The Author(s).