English

Dynamically generated magnetic moment in the Wigner-function formalism

High Energy Physics - Theory 2019-03-29 v1 High Energy Physics - Phenomenology Nuclear Theory

Abstract

We study how the mass and magnetic moment of the quarks are dynamically generated in nonequilibrium quark matter. We derive the equal-time transport and constraint equations for the quark Wigner function in a magnetized quark model and solve them in the semi-classical expansion. The quark mass and magnetic moment are self-consistently coupled to the Wigner function and controlled by the kinetic equations. While the quark mass is dynamically generated at the classical level, the quark magnetic moment is a pure quantum effect, induced by the quark spin interaction with the external magnetic field.

Keywords

Cite

@article{arxiv.1812.06684,
  title  = {Dynamically generated magnetic moment in the Wigner-function formalism},
  author = {Shijun Mao and Dirk H. Rischke},
  journal= {arXiv preprint arXiv:1812.06684},
  year   = {2019}
}

Comments

10 pages, 2 figures

R2 v1 2026-06-23T06:44:20.559Z