Effects of magnetic fields on the quark-gluon plasma

被引：2

作者：

Bali, G. S. ^{[1
,2
]}

Bruckmann, F. ^{[1
]}

Endrodi, G. ^{[1
]}

Fodor, Z. ^{[3
,4
,5
]}

Katz, S. D. ^{[3
,6
]}

Schaefer, A. ^{[1
]}

机构：

[1] Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany

[2] Tata Inst Fundamental Res, Mumbai 400005, Maharashtra, India

[3] Eotvos Lorand Univ, H-1117 Budapest, Hungary

[4] Berg Univ Wuppertal, D-42119 Wuppertal, Germany

[5] Forschungszentrum Julich, Julich Supercomp Ctr, D-52425 Julich, Germany

[6] MTA ELTE Lendulet Lattice Gauge Theory Res Grp, Wuppertal, Germany

来源：

NUCLEAR PHYSICS A | 2014年 / 931卷

基金：

欧洲研究理事会;

关键词：

Quark-gluon plasma; Electromagnetic fields; Elliptic flow; Chiral magnetic effect;

D O I：

10.1016/j.nuclphysa.2014.09.020

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：

In this talk, the response of the thermal QCD medium to external (electro)magnetic fields is studied using continuum extrapolated lattice results at physical quark masses. The magnetic susceptibility of QCD is calculated, revealing a strong paramagnetic response at high temperatures. This paramagnetism is shown to result in an anisotropic squeezing of the quark-gluon plasma in non-central heavy-ion collisions, implying a sizeable contribution to the elliptic flow. Another aspect is the magnetic response of topologically non-trivial domains to the magnetic field. We quantify this effect on the lattice and compare the results to a simple model estimate. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：752 / 757

页数：6

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