Measurement of higher-order harmonic azimuthal anisotropy in PbPb collisions at root s(NN)=2.76 TeV

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	Measurement of higher-order harmonic azimuthal anisotropy in PbPb collisions at root s(NN)=2.76 TeV
	CMS Collaboration
刊名	PHYSICAL REVIEW C
	2014
卷号	89 期号:4
关键词	QUARK-GLUON PLASMA LEE-YANG ZEROS ELLIPTIC FLOW ECCENTRICITY FLUCTUATIONS NUCLEAR COLLISIONS COLLECTIVE FLOW COLLABORATION PERSPECTIVE DEPENDENCE SIGNATURE
通讯作者	Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
英文摘要	Measurements are presented by the CMS Collaboration at the Large Hadron Collider (LHC) of the higher-order harmonic coefficients that describe the azimuthal anisotropy of charged particles emitted in root s(NN) = 2.76 TeV PbPb collisions. Expressed in terms of the Fourier components of the azimuthal distribution, the n = 3-6 harmonic coefficients are presented for charged particles as a function of their transverse momentum (0.3 < p(T) < 8.0 GeV/c), collision centrality (0%-70%), and pseudorapidity (\|eta\| < 2.0). The data are analyzed using the event plane, multiparticle cumulant, and Lee-Yang zeros methods, which provide different sensitivities to initial-state fluctuations. Taken together with earlier LHC measurements of elliptic flow (n = 2), the results on higher-order harmonic coefficients develop a more complete picture of the collective motion in high-energy heavy-ion collisions and shed light on the properties of the produced medium.
学科主题	Physics
类目[WOS]	Physics, Nuclear
收录类别	SCI
语种	英语
WOS记录号	WOS:000334301000001
公开日期	2016-02-25
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/213687]
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 higher-order harmonic azimuthal anisotropy in PbPb collisions at root s(NN)=2.76 TeV[J]. PHYSICAL REVIEW C,2014,89(4).
APA	CMS Collaboration.(2014).Measurement of higher-order harmonic azimuthal anisotropy in PbPb collisions at root s(NN)=2.76 TeV.PHYSICAL REVIEW C,89(4).
MLA	CMS Collaboration."Measurement of higher-order harmonic azimuthal anisotropy in PbPb collisions at root s(NN)=2.76 TeV".PHYSICAL REVIEW C 89.4(2014).