Photon and dilepton emission anisotropy for a magnetized quark-gluon plasma

被引：2

作者：

Wang, Xinyang ^{[1
,2
,3
]}

Shovkovy, Igor A. ^{[4
,5
]}

机构：

[1] Anhui Univ Sci & Technol, Ctr Fundamental Phys, Sch Mech & Phys, Huainan 232001, Anhui, Peoples R China

[2] Jiangsu Univ, Dept Phys, Zhenjiang 212013, Peoples R China

[3] UCAS, Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, Hangzhou 310024, Peoples R China

[4] Arizona State Univ, Sch Appl Sci & Arts, Mesa, AZ 85212 USA

[5] Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA

来源：

PHYSICAL REVIEW D | 2024年 / 109卷 / 05期

基金：

美国国家科学基金会;

关键词：

PB-PB COLLISIONS; HEAVY-ION COLLISIONS; QUANTUM CHROMODYNAMICS; THERMAL PHOTONS; FIELD; FLOW; VISCOSITY;

D O I：

10.1103/PhysRevD.109.056008

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the higher-order anisotropy coefficients v4 and v6 in the photon and dilepton emission from a hot magnetized quark-gluon plasma. Together with the earlier predictions for v2, these results show a distinctive pattern of the anisotropy coefficients in several kinematic regimes. In the case of photon emission, nonzero coefficients vn (with even n) have opposite signs at small and large values of the transverse momentum (i.e., kT less than or similar to JeBJ and kT greater than or similar to JeBJ , respectively). Additionally, the vn signs alternate with increasing n, and their approximate values decrease as 1=n2 in magnitude. The anisotropy of dilepton emission is well pronounced only at large transverse momenta and small invariant masses (i.e., when ffiffiffiffiffiffiffiffi ffiffiffiffiffiffiffiffi kT greater than or similar to JeBJ and M less than or similar to JeBJ). The corresponding v4 and v6 coefficients are of the same magnitude and show a similar alternating sign pattern with increasing n as in the photon emission.

引用

页数：11

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