Global constraint on the magnitude of anomalous chiral effects in heavy-ion collisions
Global constraint on the magnitude of anomalous chiral effects in heavy-ion collisions
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DOI：
10.1103/physrevc.107.l031902
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发表时间：
2022-11
影响因子：
3.1
通讯作者：
Wenya Wu;Q. Shou;P. Christakoglou;P. Das;Md. Rihan Haque;G. Ma;Yugang Ma;B. Mohanty;
中科院分区：
文献类型：
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作者：
Wenya Wu;Q. Shou;P. Christakoglou;P. Das;Md. Rihan Haque;G. Ma;Yugang Ma;B. Mohanty;
在寻找重离子碰撞中的异常手性效应时，最关键的点之一是信号与背景之间的关系。在这封信中，我们提出了在大型强子对撞机能量下改进的爆炸波模型的模拟，该模型可以同时表征大多数可测量量，特别是手性磁效应（CME）和手性磁波（CMW）可观察量。这种通用的描述首次自然而定量地统一了 CME 和 CMW 研究，并揭示了与局域电荷守恒（LCC）背景的联系。此外，采用简单的现象学方法来引入信号，旨在量化实验精度内信号的最大允许强度。这种约束提供了理解实验数据的新视角，并为反常手性效应和电荷相关相关性的研究提供了新的思路。
When searching for anomalous chiral effects in heavy-ion collisions, one of the most crucial points is the relationship between the signal and the background. In this letter, we present a simulation in a modified blast wave model at LHC energy, which can simultaneously characterize the majority of measurable quantities, in particular, the chiral magnetic effect (CME) and the chiral magnetic wave (CMW) observables. Such a universal description, for the first time, naturally and quantitatively unifies the CME and the CMW studies and brings to light the connection with the local charge conservation (LCC) background. Moreover, a simple phenomenological approach is performed to introduce the signals, aiming at quantifying the maximum allowable strength of the signals within experimental precision. Such a constraint provides a novel perspective to understand the experimental data and sheds new light on the study of anomalous chiral effects as well as charge dependent correlations.