Measurement of event-plane correlations in root s(NN)=2.76 TeV lead-lead collisions with the ATLAS detector

	Measurement of event-plane correlations in root s(NN)=2.76 TeV lead-lead collisions with the ATLAS detector
	ATLAS collaboration
刊名	PHYSICAL REVIEW C
	2014
卷号	90 期号:2
关键词	HEAVY-ION COLLISIONS INITIAL GEOMETRY FLUCTUATIONS NUCLEAR COLLISIONS PB COLLISIONS FLOW
通讯作者	Aad, G (reprint author), Aix Marseille Univ, CPPM, Marseille, France.
英文摘要	A measurement of event-plane correlations involving two or three event planes of different order is presented as a function of centrality for 7 mu b(-1) Pb + Pb collision data at v root s(NN) = 2.76 TeV, recorded by the ATLAS experiment at the Large Hadron Collider. Fourteen correlators are measured using a standard event-plane method and a scalar-product method, and the latter method is found to give a systematically larger correlation signal. Several different trends in the centrality dependence of these correlators are observed. These trends are not reproduced by predictions based on the Glauber model, which includes only the correlations from the collision geometry in the initial state. Calculations that include the final-state collective dynamics are able to describe qualitatively, and in some cases also quantitatively, the centrality dependence of the measured correlators. These observations suggest that both the fluctuations in the initial geometry and the nonlinear mixing between different harmonics in the final state are important for creating these correlations in momentum space.
学科主题	Physics
类目[WOS]	Physics, Nuclear
收录类别	SCI
语种	英语
WOS记录号	WOS:000341240300002
公开日期	2016-02-26
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/213763]
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 event-plane correlations in root s(NN)=2.76 TeV lead-lead collisions with the ATLAS detector[J]. PHYSICAL REVIEW C,2014,90(2).
APA	ATLAS collaboration.(2014).Measurement of event-plane correlations in root s(NN)=2.76 TeV lead-lead collisions with the ATLAS detector.PHYSICAL REVIEW C,90(2).
MLA	ATLAS collaboration."Measurement of event-plane correlations in root s(NN)=2.76 TeV lead-lead collisions with the ATLAS detector".PHYSICAL REVIEW C 90.2(2014).