Interpreting the charge-dependent flow and constraining the chiral magnetic wave with event shape engineering

被引：15

作者：

Wang, Chun-Zheng ^{[1
,2
]}

Wu, Wen-Ya ^{[3
]}

Shou, Qi-Ye ^{[3
]}

Ma, Guo-Liang ^{[3
]}

Ma, Yu-Gang ^{[3
]}

Zhang, Song ^{[3
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Fudan Univ, Inst Modern Phys, Key Lab Nucl Phys & Ion Beam Applicat MOE, Shanghai 200433, Peoples R China

来源：

PHYSICS LETTERS B | 2021年 / 820卷

基金：

中国国家自然科学基金;

关键词：

HEAVY-ION COLLISIONS; ELLIPTIC FLOW; SEARCH; SEPARATION; ASYMMETRY; TRANSPORT; PARTON;

D O I：

10.1016/j.physletb.2021.136580

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The charge asymmetry (Ach) dependence of anisotropic flow serves as an important tool to search for the chiral magnetic wave (CMW) in heavy-ion collisions. However, the background effect, such as the local charge conservation (LCC) entwined with collective flow, has not yet been unambiguously eliminated in the measurement. With the help of two models, the AMPT with initial quadrupole moment and the blast wave (BW) incorporating LCC, we discuss the features of the LCC-induced and the CMW-induced correlations between Ach and the flow. More importantly, we first propose to use the Event Shape Engineering (ESE) technique to distinguish the background and the signal for the CMW study. This method would be highly desirable in the experimental search for the CMW and provides more insights for understanding the charge-dependent collective motion of the quark-gluon plasma. (c) 2021 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.

引用

页数：5

共 51 条

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