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arXiv · hep-ph/9906207

Fermionic dispersion relations at finite temperature and non-vanishing chemical potentials in the minimal standard model

John Morales·Carlos Quimbay·Frank Fonseca
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Abstract

We calculate the fermionic dispersion relations in the minimal standard model at finite temperature in presence of non-vanishing chemical potentials due to the CP-asymmetric fermionic background. The dispersion relations are calculated for a vacuum expectation value of the Higgs field equal to zero (unbroken electroweak symmetry). The calculation is performed in the real time formalism of the thermal field theory at one-loop order in a general $ξ$ gauge. The fermionic self-energy is calculated at leading order in temperature and chemical potential and this fact permits us to obtain gauge invariant analytical expressions for the dispersion relations.

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John Morales, Carlos Quimbay, Frank Fonseca. 1999-06-01. Fermionic dispersion relations at finite temperature and non-vanishing chemical potentials in the minimal standard model. https://doi.org/10.1016/s0550-3213(99)00459-9

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