Plasma induced fermion spin-flip conversion f_L -> f_R + gamma

Details Plasma induced fermion spin-flip conversion f_L -> f_R + gamma Plasma induced fermion spin-flip conversion f_L -> f_R + gamma

2007-01-26

arxiv.org/abs/hep-ph/0701228v1

Int.J.Mod.Phys.A22:3211-3227,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, LaTeX, 2 EPS figures, submitted to International Journal of Modern Physics A

Scientific paper

10.1142/S0217751X07036506

The fermion spin-flip conversion f_L -> f_R + gamma is considered, caused by the difference of the additional energies of the electroweak origin, acquired by left- and right-handed fermions (neutrino, electron) in medium. An accurate taking account of the fermion and photon dispersion in medium is performed. It is shown that the threshold arises in the process, caused by the photon (plasmon) effective mass. This threshold leaves no room for the so-called ``spin light of neutrino'' and ``spin light of electron'' in the real astrophysical situations.

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