论文标题
磁场中的夸克 - 格鲁恩等离子体速度
Quark-gluon plasma speed of sound in magnetic field
论文作者
论文摘要
在均匀的磁场至EB 〜1 GEV^2的均匀磁场下，在反式转换过渡的温度上，在夸克 - 格鲁隆等离子体的声音速度上应用了一种非扰动方法（FCM）。 N_F = 2+1中的声速QCD QUARK-GLUON等离子体在非常大的磁场强度EB> 0.5 GEV^2处超过共形极限（1/3）。 在较大的温度下，声速趋于共形极限。 低温行为表现出逆磁催化。 在任何现有的重离子碰撞实验中，发现磁场对夸克 - 杜伦等离子体中声速的影响都可以忽略不计，包括\ sqrt {s_ {nn}} = 5.02 LHC处的TEV PB-PB碰撞。
A non-perturbative method of Field Correlators (FCM) is applied to study speed of sound in quark-gluon plasma at temperatures above the deconfinement transition 1<T/T_c<3 (Tc=160 MeV) under a uniform magnetic field up to eB ~ 1 GeV^2. The speed of sound in N_f=2+1 QCD quark-gluon plasma is found to exceed the conformal limit (1/3) at very large magnetic field strengths eB>0.5 GeV^2. At large temperatures, the speed of sound tends to the conformal limit; low-temperature behavior demonstrates inverse magnetic catalysis. The effect of magnetic field on the speed of sound in quark-gluon plasma is found to be negligible in any existing Heavy Ion Collision experiment, including \sqrt{s_{NN}}=5.02 TeV Pb-Pb collisions at LHC.
