Measurement of the production cross section of three isolated photons in pp collisions at root s=8 TeV using the ATLAS detector

doi:10.1016/j.physletb.2018.03.057

	Measurement of the production cross section of three isolated photons in pp collisions at root s=8 TeV using the ATLAS detector
	ATLAS Collaboration
刊名	PHYSICS LETTERS B
	2018
卷号	781 页码:55-76
ISSN号	0370-2693
DOI	10.1016/j.physletb.2018.03.057
文献子类	Article
英文摘要	A measurement of the production of three isolated photons in proton-proton collisions at a centre-of-mass energy root s = 8 TeV is reported. The results are based on an integrated luminosity of 20.2 fb(-1) collected with the ATLAS detector at the LHC. The differential cross sections are measured as functions of the transverse energy of each photon, the difference in azimuthal angle and in pseudorapidity between pairs of photons, the invariant mass of pairs of photons, and the invariant mass of the triphoton system. A measurement of the inclusive fiducial cross section is also reported. Next-to-leading-order perturbative QCD predictions are compared to the cross-section measurements. The predictions underestimate the measurement of the inclusive fiducial cross section and the differential measurements at low photon transverse energies and invariant masses. They provide adequate descriptions of the measurements at high values of the photon transverse energies, invariant mass of pairs of photons, and invariant mass of the triphoton system. (C) 2018 The Author. Published by Elsevier B.V.
电子版国际标准刊号	1873-2445
WOS关键词	PARTON DISTRIBUTIONS ; HIERARCHY ; QUARK ; LHC
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
WOS记录号	WOS:000435653100007
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/286055]
专题	高能物理研究所_实验物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	ATLAS Collaboration. Measurement of the production cross section of three isolated photons in pp collisions at root s=8 TeV using the ATLAS detector[J]. PHYSICS LETTERS B,2018,781:55-76.
APA	ATLAS Collaboration.(2018).Measurement of the production cross section of three isolated photons in pp collisions at root s=8 TeV using the ATLAS detector.PHYSICS LETTERS B,781,55-76.
MLA	ATLAS Collaboration."Measurement of the production cross section of three isolated photons in pp collisions at root s=8 TeV using the ATLAS detector".PHYSICS LETTERS B 781(2018):55-76.