Fermion and Anti-Fermion Effective Masses in High Temperature Gauge Theories in CP-Asymmetric Background
A. Erdas, C. W. Kim, J. A. Lee
Abstract
We calculate the splitting between fermion and anti-fermion effective masses in high temperature gauge theories in the presence of a non-vanishing chemical potential due to the CP-asymmetric fermionic background. In particular we consider the case of left-handed leptons in the SU(2) U(1) theory when the temperature is above 250 GeV and the gauge symmetry is restored.
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