Measurement of the elliptic anisotropy of charged particles produced in PbPb collisions at root s(NN)=2.76 TeV
文献类型：期刊论文
| 作者 | CMS Collaboration |
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2013 |
| 卷号 | 87期号:1 |
| 关键词 | HEAVY-ION COLLISIONS QUARK-GLUON PLASMA LEE-YANG ZEROS ECCENTRICITY FLUCTUATIONS NUCLEAR COLLISIONS FLOW MATTER COLLABORATION DEPENDENCE SIGNATURE |
| 通讯作者 | Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia. |
| 英文摘要 | 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 |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Nuclear |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000313159400007 |
| 公开日期 | 2016-02-25 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/213429]  |
| 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 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). |
入库方式： OAI收割
来源：高能物理研究所
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