Constraining the Chiral Magnetic Effect with charge-dependent azimuthal correlations in Pb-Pb collisions at root s(NN)=2.76 and 5.02 TeV
文献类型：期刊论文
| 作者 | Acharya, S; Acosta, FT; Adam, J; Adamova, D; Adler, A; Adolfsson, J; Aggarwal, MM; Rinella, GA; Agnello, M; Agrawal, N |
| 刊名 | JOURNAL OF HIGH ENERGY PHYSICS
 |
| 出版日期 | 2020 |
| 期号 | 9页码:- |
| ISSN号 | 1029-8479 |
| 关键词 | RELATIVISTIC NUCLEAR COLLISIONS ELLIPTIC FLOW EVENT FLUCTUATIONS FIELD MODEL |
| DOI | 10.1007/JHEP09(2020)160 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Systematic studies of charge-dependent two- and three-particle correlations in Pb-Pb collisions at root s(NN) = 2.76 and 5.02 TeV used to probe the Chiral Magnetic Effect (CME) are presented. These measurements are performed for charged particles in the pseudorapidity (eta) and transverse momentum (p(T)) ranges |eta| < 0.8 and 0.2 < p(T) < 5 GeV/c. A significant charge-dependent signal that becomes more pronounced for peripheral collisions is reported for the CME-sensitive correlators gamma(1, 1) = < cos(phi(alpha) + phi(beta) - 2 psi(2))> and gamma(1, - 3) = < cos(phi(alpha) - 3 phi(beta) + 2 psi(2))>. The results are used to estimate the contribution of background effects, associated with local charge conservation coupled to anisotropic flow modulations, to measurements of the CME. A blast-wave parametrisation that incorporates local charge conservation tuned to reproduce the centrality dependent background effects is not able to fully describe the measured gamma(1,1). Finally, the charge and centrality dependence of mixed-harmonics three-particle correlations, of the form gamma(1, 2) = < cos(phi(alpha) + 2 phi(beta) - 3 psi(3))>, which are insensitive to the CME signal, verify again that background contributions dominate the measurement of gamma(1,1). |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/32757]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Sezione Ist Nazl Fis Nucl, Trieste, Italy 2.INFN, Sez Torino, Alessandria, Italy 3.Eberhard Karls Univ Tubingen, Phys Inst, Tubingen, Germany 4.Yerevan Phys Inst, AI Alikhanyan Natl Sci Lab, Yerevan, Armenia 5.Natl Acad Sci Ukraine, Bogolyubov Inst Theoret Phys, Kiev, Ukraine 6.Bose Inst, Dept Phys, Kolkata, India 7.Bose Inst, Ctr Astroparticle Phys & Space Sci, Kolkata, India 8.Budker Inst Nucl Phys, Novosibirsk, Russia 9.Calif Polytechn State Univ, San Luis Obispo, CA USA 10.Cent China Normal Univ, Wuhan, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Acharya, S,Acosta, FT,Adam, J,et al. Constraining the Chiral Magnetic Effect with charge-dependent azimuthal correlations in Pb-Pb collisions at root s(NN)=2.76 and 5.02 TeV[J]. JOURNAL OF HIGH ENERGY PHYSICS,2020(9):-. |
| APA | Acharya, S.,Acosta, FT.,Adam, J.,Adamova, D.,Adler, A.,...&Zmeskal, J.(2020).Constraining the Chiral Magnetic Effect with charge-dependent azimuthal correlations in Pb-Pb collisions at root s(NN)=2.76 and 5.02 TeV.JOURNAL OF HIGH ENERGY PHYSICS(9),-. |
| MLA | Acharya, S,et al."Constraining the Chiral Magnetic Effect with charge-dependent azimuthal correlations in Pb-Pb collisions at root s(NN)=2.76 and 5.02 TeV".JOURNAL OF HIGH ENERGY PHYSICS .9(2020):-. |
入库方式： OAI收割
来源：上海应用物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。