Two- and three-particle nonflow contributions to the chiral magnetic effect measurement by spectator and participant planes in relativistic heavy ion collisions

被引：16

作者：

Feng, Yicheng ^{[1
]}

Zhao, Jie ^{[1
]}

Li, Hanlin ^{[2
]}

Xu, Hao-jie ^{[3
]}

Wang, Fuqiang ^{[1
,3
]}

机构：

[1] Purdue Univ, Dept Phys & Astron, W Lafayette, IN 47907 USA

[2] Wuhan Univ Sci & Technol, Coll Sci, Wuhan 430065, Hubei, Peoples R China

[3] Huzhou Univ, Sch Sci, Huzhou 313000, Zhejiang, Peoples R China

来源：

PHYSICAL REVIEW C | 2022年 / 105卷 / 02期

关键词：

PHYSICS EVENT GENERATION; NUCLEAR COLLISIONS; PARITY VIOLATION; FLOW; FLUCTUATIONS; MODEL;

D O I：

10.1103/PhysRevC.105.024913

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Correlation measurements with respect to the spectator and participant planes in relativistic heavy ion collisions were proposed to extract the chiral magnetic effect (CME) from background dominated azimuthal correlators. This paper investigates the effects of two-and three-particle nonflow correlations on the extracted CME signal fraction, f(CME). It is found, guided by a multiphase transport (AMPT) model and the heavy ion jet interaction generator (HIJING) together with experimental data, that the nonflow effects amount to approximately (4 +/- 5)% and (-5 +/- 3)% without and with pseudorapidity gaps, respectively, in 20-50% centrality Au+Au collisions at root s(NN) = 200 GeV.

引用

页数：12

共 5 条

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