Azimuthal anisotropy of charged particles with transverse momentum up to 100GeV/c in PbPb collisions at root S-NN=5.02 TeV
文献类型：期刊论文
| 作者 | CMS Collaboration |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2018 |
| 卷号 | 776页码:195-216 |
| 关键词 | CMS QGP High-pT Flow Parton energy loss Jet quenching |
| ISSN号 | 0370-2693 |
| DOI | 10.1016/j.physletb.2017.11.041 |
| 文献子类 | Article |
| 英文摘要 | The Fourier coefficients v(2) and v(3) characterizing the anisotropy of the azimuthal distribution of charged particles produced in PbPb collisions at root S-NN = 5.02 TeV are measured with data collected by the CMS experiment. The measurements cover a broad transverse momentum range, 1 < p(T) < 100 GeV/c. The analysis focuses on the p(T) > 10 GeV/c range, where anisotropic azimuthal distributions should reflect the path-length dependence of parton energy loss in the created medium. Results are presented in several bins of PbPb collision centrality, spanning the 60% most central events. The v(2) coefficient is measured with the scalar product and the multiparticle cumulant methods, which have different sensitivities to initial-state fluctuations. The values from both methods remain positive up to p(T) similar to 60-80 GeV/c, in all examined centrality classes. The v(3) coefficient, only measured with the scalar product method, tends to zero for p(T) greater than or similar to 20 GeV/c. Comparisons between theoretical calculations and data provide new constraints on the path-length dependence of parton energy loss in heavy ion collisions and highlight the importance of the initial-state fluctuations. (C) 2017 The Author. Published by Elsevier B.V. |
| 电子版国际标准刊号 | 1873-2445 |
| WOS关键词 | RELATIVISTIC NUCLEAR COLLISIONS ; QUARK-GLUON PLASMA ; AU+AU COLLISIONS ; ELLIPTIC FLOW ; ROOT-S(NN)=200 GEV ; DISTRIBUTIONS ; SUPPRESSION ; COLLABORATION ; PERSPECTIVE ; DEPENDENCE |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000419641100031 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285559]  |
| 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. Azimuthal anisotropy of charged particles with transverse momentum up to 100GeV/c in PbPb collisions at root S-NN=5.02 TeV[J]. PHYSICS LETTERS B,2018,776:195-216. |
| APA | CMS Collaboration.(2018).Azimuthal anisotropy of charged particles with transverse momentum up to 100GeV/c in PbPb collisions at root S-NN=5.02 TeV.PHYSICS LETTERS B,776,195-216. |
| MLA | CMS Collaboration."Azimuthal anisotropy of charged particles with transverse momentum up to 100GeV/c in PbPb collisions at root S-NN=5.02 TeV".PHYSICS LETTERS B 776(2018):195-216. |
入库方式： OAI收割
来源：高能物理研究所
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