Heavy quark dynamics in a hot magnetized QCD medium

Heavy quark dynamics in a hot magnetized QCD medium
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热磁化 QCD 介质中的重夸克动力学

DOI:
10.1103/physrevd.100.074003
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发表时间:
2019-07
期刊:
影响因子:
5
通讯作者:
ra
ra
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Manu Kurian;Santosh Kumar Das;Vinod Ch;ra

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本文研究了热磁化夸克胶子等离子体中重夸克曳力和动量扩散,沿着平行于和垂直于磁场的方向。在Fokker-Planck动力学的框架内,考虑了重夸克与热夸克和胶子的散射,在耦合常数的领先顺序。采用一种扩展的准粒子模型来描述磁场中热QCD介质相互作用。进一步研究了高朗道能级对阻力和扩散系数的平行分量和垂直分量的温度行为的影响。已经观察到,状态方程和磁场都在重夸克动力学的温度依赖性中起关键作用。
The heavy quark drag and momentum diffusion have been investigated in a hot magnetized quark-gluon plasma, along the directions parallel and perpendicular to the magnetic field. The analysis is done within the framework of Fokker-Planck dynamics by considering the heavy quark scattering with thermal quarks and gluons at the leading order in the coupling constant. An extended quasiparticle model is adopted to encode the thermal QCD medium interactions in the presence of a magnetic field. Further, the higher Landau level effects on the temperature behavior of the parallel and perpendicular components of the drag force and diffusion coefficients have studied. It has been observed that both the equation of state and the magnetic field play key roles in the temperature dependence of the heavy quark dynamics.
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