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Measurement of the elliptic anisotropy of charged particles produced in PbPb collisions at root s(NN)=2.76 TeV
CMS Collaboration
2013
发表期刊PHYSICAL REVIEW C
卷号87期号:1
通讯作者Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
摘要The anisotropy of the azimuthal distributions of charged particles produced in root s(NN) = 2.76 TeV PbPb collisions is studied with the CMS experiment at the LHC. The elliptic anisotropy parameter, upsilon(2), defined as the second coefficient in a Fourier expansion of the particle invariant yields, is extracted using the event-plane method, two- and four-particle cumulants, and Lee-Yang zeros. The anisotropy is presented as a function of transverse momentum (p(T)), pseudorapidity (eta) over a broad kinematic range, 0.3 < p(T) < 20 GeV/c, vertical bar eta vertical bar < 2.4, and in 12 classes of collision centrality from 0 to 80%. The results are compared to those obtained at lower center-of-mass energies, and various scaling behaviors are examined. When scaled by the geometric eccentricity of the collision zone, the elliptic anisotropy is found to obey a universal scaling with the transverse particle density for different collision systems and center-of-mass energies. DOI: 10.1103/PhysRevC.87.014902
关键词HEAVY-ION COLLISIONS QUARK-GLUON PLASMA LEE-YANG ZEROS ECCENTRICITY FLUCTUATIONS NUCLEAR COLLISIONS FLOW MATTER COLLABORATION DEPENDENCE SIGNATURE
学科领域Physics
DOI10.1103/PhysRevC.87.014902
收录类别SCI
语种英语
WOS类目Physics, Nuclear
WOS记录号WOS:000313159400007
引用统计
被引频次:102[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/213429
专题粒子天体物理中心
作者单位中国科学院高能物理研究所
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CMS Collaboration. Measurement of the elliptic anisotropy of charged particles produced in PbPb collisions at root s(NN)=2.76 TeV[J]. PHYSICAL REVIEW C,2013,87(1).
APA CMS Collaboration.(2013).Measurement of the elliptic anisotropy of charged particles produced in PbPb collisions at root s(NN)=2.76 TeV.PHYSICAL REVIEW C,87(1).
MLA CMS Collaboration."Measurement of the elliptic anisotropy of charged particles produced in PbPb collisions at root s(NN)=2.76 TeV".PHYSICAL REVIEW C 87.1(2013).
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