Investigation of experimental observables in search of the chiral magnetic effect in heavy-ion collisions in the STAR experiment

• 作者: Subikash Choudhury Xin Dong Jim Drachenberg James Dunlop ShinIchi Esumi Yicheng Feng Evan Finch Yu Hu Jiangyong Jia Jerome Lauret Wei Li Jinfeng Liao Yufu Lin Mike Lisa Takafumi Niida Robert Lanny Ray Masha Sergeeva Diyu Shen Shuzhe Shi Paul Sorensen Aihong Tang Prithwish Tribedy Gene Van Buren Sergei Voloshin Fuqiang Wang Gang Wang Haojie Xu Zhiwan Xu Nanxi Yao Jie Zhao
• 来源期刊: 中国物理C（英文版）
• 年，卷（期）: 2022,（1）
• 所属期刊栏目: NUCLEAR PHYSICS
• 页码范围: 129-145
• 页数: 17页
• 语种: 英文
• DOI: 10.1088/1674-1137/ac2a1f

摘要

The chiral magnetic effect (CME) is a novel transport phenomenon,arising from the interplay between quantum anomalies and strong magnetic fields in chiral systems.In high-energy nuclear collisions,the CME may survive the expansion of the quark-gluon plasma fireball and be detected in experiments.Over the past two decades,experimental searches for the CME have attracted extensive interest at the Relativistic Heavy Ion Collider (RHIC)and the Large Hadron Collider (LHC).The main goal of this study is to investigate three pertinent experimental ap-proaches:the y correlator,the R correlator,and the signed balance functions.We exploit simple Monte Carlo simu-lations and a realistic event generator (EBE-AVFD) to verify the equivalence of the core components among these methods and to ascertain their sensitivities to the CME signal and the background contributions for the isobar colli-sions at the RHIC.