Anomalous chiral transport in heavy ion collisions from Anomalous-Viscous Fluid Dynamics

被引：110

作者：

Shi, Shuzhe ^{[1
,2
]}

Jiang, Yin ^{[3
,4
]}

Lilleskov, Elias ^{[1
,2
,5
]}

Liao, Jinfeng ^{[1
,2
,6
,7
]}

机构：

[1] Indiana Univ, Phys Dept, 2401 N Milo B Sampson Lane, Bloomington, IN 47408 USA

[2] Indiana Univ, Ctr Explorat Energy & Matter, 2401 N Milo B Sampson Lane, Bloomington, IN 47408 USA

[3] Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China

[4] Heidelberg Univ, Inst Theoret Phys, Philosophenweg 16, D-69120 Heidelberg, Germany

[5] Macalester Coll, Dept Phys & Astron, 1600 Grand Ave, St Paul, MN 55105 USA

[6] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Hubei, Peoples R China

[7] Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Hubei, Peoples R China

来源：

ANNALS OF PHYSICS | 2018年 / 394卷

基金：

美国国家科学基金会;

关键词：

CHARGE SEPARATION; HYDRODYNAMICS; VIOLATION; FIELD; QCD;

D O I：

10.1016/j.aop.2018.04.026

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Chiral anomaly is a fundamental aspect of quantum theories with chiral fermions. How such microscopic anomaly manifests itself in a macroscopic many-body system with chiral fermions, is a highly nontrivial question that has recently attracted significant interest. As it turns out, unusual transport currents can be induced by chiral anomaly under suitable conditions in such systems, with the notable example of the Chiral Magnetic Effect (CME) where a vector current (e.g. electric current) is generated along an external magnetic field. A lot of efforts have been made to search for CME in heavy ion collisions, by measuring the charge separation effect induced by the CME transport. A crucial challenge in such effort, is the quantitative prediction for the CME signal. In this paper, we develop the Anomalous-Viscous Fluid Dynamics (AVFD) framework, which implements the anomalous fluid dynamics to describe the evolution of fermion currents in QGP, on top of the neutral bulk background described by the VISH2+1 hydrodynamic simulations for heavy ion collisions. With this new tool, we quantitatively and systematically investigate the dependence of the CME signal to a series of theoretical inputs and associated uncertainties. With realistic estimates of initial conditions and magnetic field lifetime, the predicted CME signal is quantitatively consistent with measured change separation data in 200GeV Au-Au collisions. Based on analysis of Au-Au collisions, we further make predictions for the CME observable to be measured in the planned isobaric (Ru-Ru v.s. Zr-Zr) collision experiment, which could provide a most decisive test of the CME in heavy ion collisions. (C) 2018 Elsevier Inc. All rights reserved.

引用

页码：50 / 72

页数：23

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