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Plasma induced neutrino radiative decay instead of neutrino spin light

A. V. Kuznetsov, N. V. Mikheev

hep-pharXiv:hep-ph/0606262

Abstract

The conversion nuL -> nuR gamma* of a neutrino with a magnetic moment is considered, caused by the additional Wolfenstein energy acquired by a left-handed neutrino in medium, with an accurate taking account of the photon γ* dispersion in medium. 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 "neutrino spin light" in the most of astrophysical situations.

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