Direct virtual photon production in Au plus Au collisions at root s(NN)=200 GeV STAR Collaboration

doi:10.1016/j.physietb.2017.04.050

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	Direct virtual photon production in Au plus Au collisions at root s(NN)=200 GeV STAR Collaboration
	Adamczyk, L; Adkins, JK; Agakishiev, G; Aggarwal, MM; Ahammed, Z; Ajitanand, NN; Alekseev, I; Anderson, DM; Aoyama, R; Aparin, A
刊名	PHYSICS LETTERS B
	2017
卷号	770 期号:-页码:451-458
关键词	Resistive Plate Chambers Particle Identification Dileptons Proton Tray Tpc
ISSN号	0370-2693
DOI	10.1016/j.physietb.2017.04.050
文献子类	期刊论文
英文摘要	We report the direct virtual photon invariant yields in the transverse momentum ranges 1 < P-T < 3 GeV/c and 5 < p(T) < 10 GeV/c at mid-rapidity derived from the dielectron invariant mass continuum region 0.10 < M-ee < 0.28 GeV/c(2) for 0-80% minimum-bias Au+Au collisions at root s(NN) = 200 GeV. A clear excess in the invariant yield compared to the nuclear overlap function T-AA scaled p + p reference is observed in the p(T) range 1 < P-T < 3 GeV/c. For P-T > 6 GeV/c the production follows T-AA scaling. Model calculations with contributions from thermal radiation and initial hard parton scattering are consistent within uncertainties with the direct virtual photon invariant yield. (C) 2017 The Author. Published by Elsevier B.V.
WOS关键词	RESISTIVE PLATE CHAMBERS ; PARTICLE IDENTIFICATION ; DILEPTONS ; PROTON ; TRAY ; TPC
语种	英语
WOS记录号	WOS:000404196500059
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/28609]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
推荐引用方式 GB/T 7714	Adamczyk, L,Adkins, JK,Agakishiev, G,et al. Direct virtual photon production in Au plus Au collisions at root s(NN)=200 GeV STAR Collaboration[J]. PHYSICS LETTERS B,2017,770(-):451-458.
APA	Adamczyk, L.,Adkins, JK.,Agakishiev, G.,Aggarwal, MM.,Ahammed, Z.,...&Zyzak, M.(2017).Direct virtual photon production in Au plus Au collisions at root s(NN)=200 GeV STAR Collaboration.PHYSICS LETTERS B,770(-),451-458.
MLA	Adamczyk, L,et al."Direct virtual photon production in Au plus Au collisions at root s(NN)=200 GeV STAR Collaboration".PHYSICS LETTERS B 770.-(2017):451-458.