On finite--temperature and --density radiative corrections to the neutrino effective potential in the early Universe

Details On finite--temperature and --density radiative corrections to the neutrino effective potential in the early Universe On finite--temperature and --density radiative corrections to the neutrino effective potential in the early Universe

1997-04-21

arxiv.org/abs/hep-ph/9704365v1

Mod.Phys.Lett.A12:2461-2468,1997

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, revtex style

Scientific paper

10.1142/S0217732397002570

Finite-temperature and -density radiative corrections to the neutrino effective potential in the otherwise CP-symmetric early Universe are considered in the real-time approach of Thermal Field Theory. A consistent perturbation theory endowed with the hard thermal loop resummation techniques developed by Braaten and Pisarski is applied. Special attention is focused on the question whether such corrections can generate any nonzero contribution to the CP-symmetric part of the neutrino potential, if the contact approximation for the W-propagator is used.

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