Measurement of the inelastic cross section in proton-lead collisions at root s(NN)=5.02 TeV

doi:10.1016/j.physletb.2016.06.027

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	Measurement of the inelastic cross section in proton-lead collisions at root s(NN)=5.02 TeV
	CMS Collaboration
刊名	PHYSICS LETTERS B
	2016
卷号	759 页码:641-662
关键词	CMS Forward physics Proton-lead Cross section
DOI	10.1016/j.physletb.2016.06.027
英文摘要	The inelastic hadronic cross section in proton-lead collisions at a centre-of-mass energy per nucleon pair of 5.02 TeV is measured with the CMS detector at the LHC. The data sample, corresponding to an integrated luminosity of L = 12.6 +/- 0.4 nb(-1), has been collected with an unbiased trigger for inclusive particle production. The cross section is obtained from the measured number of proton-lead collisions with hadronic activity produced in the pseudorapidity ranges 3 < eta < 5 and/or -5 < eta < -3, corrected for photon-induced contributions, experimental acceptance, and other instrumental effects. The inelastic cross section is measured to be sigma(inel)(pPb) = 2061 +/- 3(stat) +/- 34(syst) +/- 72(lumi) mb. Various Monte Carlo generators, commonly used in heavy ion and cosmic ray physics, are found to reproduce the data within uncertainties. The value of sigma(inel)(pPb) is compatible with that expected from the proton-proton cross section at 5.02 TeV scaled up within a simple Glauber approach to account for multiple scatterings in the lead nucleus, indicating that further net nuclear corrections are small. (C) 2016 The Author. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org//licenses/by/4.0/).
语种	英语
WOS记录号	WOS:000380409200084
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/260733]
专题	高能物理研究所_粒子天体物理中心
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	CMS Collaboration. Measurement of the inelastic cross section in proton-lead collisions at root s(NN)=5.02 TeV[J]. PHYSICS LETTERS B,2016,759:641-662.
APA	CMS Collaboration.(2016).Measurement of the inelastic cross section in proton-lead collisions at root s(NN)=5.02 TeV.PHYSICS LETTERS B,759,641-662.
MLA	CMS Collaboration."Measurement of the inelastic cross section in proton-lead collisions at root s(NN)=5.02 TeV".PHYSICS LETTERS B 759(2016):641-662.