Wigner function and kinetic theory for massive spin-1/2 particles

被引：9

作者：

Weickgenannt, Nora ^{[1
]}

Sheng, Xin-li ^{[1
,2
,3
]}

Speranza, Enrico ^{[1
]}

Wang, Qun ^{[2
,3
]}

Rischke, Dirk H. ^{[1
,2
,3
]}

机构：

[1] Goethe Univ, Inst Theoret Phys, Max von Laue Str 1, D-60438 Frankfurt, Germany

[2] Univ Sci & Technol China, Interdisciplinary Ctr Theoret Study, Hefei 230026, Anhui, Peoples R China

[3] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Anhui, Peoples R China

来源：

NUCLEAR PHYSICS A | 2021年 / 1005卷

关键词：

Relativistic heavy-ion collisions; kinetic theory; Wigner function; polarization; POLARIZATION; DYNAMICS;

D O I：

10.1016/j.nuclphysa.2020.121963

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 calculate the Wigner function for massive spin-1/2 particles in an inhomogeneous electromagnetic field to leading order in the Planck constant h. Going beyond leading order in h we then derive a generalized Boltzmann equation in which the force exerted by an inhomogeneous electromagnetic field on the particle dipole moment arises naturally. Furthermore, a kinetic equation for this dipole moment is derived. Carefully taking the massless limit we find agreement with previous results. The case of global equilibrium with rotation is also studied. Our framework can be used to study polarization effects induced by vorticity and magnetic field in relativistic heavy-ion collisions.

引用

页数：4

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