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arXiv 1802.03283nucl-exhep-exhep-phnucl-th
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RHIC中p(d)+Au,Au+Au碰撞的手征磁效应研究

Chiral magnetic effect search in p(d)+Au, Au+Au collisions at RHIC

Jie Zhao

摘要:

手征磁效应(CME)是指单手夸克在强磁场中与拓扑胶子场相互作用而产生的电荷分离现象。重离子碰撞中CME测量的一个主要背景来自与椭圆流各向异性耦合的共振衰减。这些会议提出了STAR的两项新研究,以进一步阐明背景问题:(1)小系统p+Au和d+Au碰撞,其中CME信号是不期望的,以及(2)对不变的质量依赖性,其中可以识别共振峰。

英文摘要:

The chiral magnetic effect (CME) refers to charge separation along a strong magnetic field of single-handed quarks, caused by interactions with topological gluon fields from QCD vacuum fluctuations. A major background of CME measurements in heavy-ion collisions comes from resonance decays coupled with elliptical flow anisotropy. These proceedings present two new studies from STAR to shed further light on the background issue: (1) small system p+Au and d+Au collisions where the CME signal is not expected, and (2) pair invariant mass dependence where resonance peaks can be identified.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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