Electromagnetic anomaly in the presence of electric and chiral magnetic conductivities in relativistic heavy-ion collisions

被引：6

作者：

Siddique, Irfan ^{[1
]}

Cao, Shanshan ^{[1
]}

Tabassam, Uzma ^{[2
]}

Saeed, Mohsin ^{[3
]}

Waqas, Muhammad ^{[4
]}

机构：

[1] Shandong Univ, Inst Frontier & Interdisciplinary Sci, Qingdao 266237, Shandong, Peoples R China

[2] COMSATS Univ, Dept Phys, Islamabad Campus,Pk Rd, Islamabad 44000, Pakistan

[3] Univ Punjab, Dept Phys, Quaid E Azam Campus, Lahore 54590, Pakistan

[4] Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China

来源：

PHYSICAL REVIEW C | 2022年 / 105卷 / 05期

基金：

中国国家自然科学基金;

关键词：

EVENT; FIELD;

D O I：

10.1103/PhysRevC.105.054909

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We study the space-time evolution of electric E and magnetic B fields along with the electromagnetic anomaly (E . B) in the presence of electric (sigma) and chiral magnetic (sigma(chi)) conductivities in Au + Au collisions at root s(NN) = 200 GeV. By comparing with the Lienard-Wiechert solutions with zero conductivities, we observe a symmetry breaking of the electromagnetic field in a conducting medium with respect to the reaction plane. The decay of the field is also significantly decelerated after the conductivities are introduced. Similar effects are also found for the dipole structure of E . B as well as the quadrupole structure of (E . B)B, which may finally affect the charge separation of the elliptic flow coefficient of hadrons observed in high-energy nuclear collisions.

引用

页数：12

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