arXiv:hep-ph/0606262·v1·High Energy Physics — Phenomenology
Plasma induced neutrino radiative decay instead of neutrino spin light
A.V. Kuznetsov🇷🇺 · N.V. Mikheev (Yaroslavl State (P.G. Demidov) University, Russia)🇷🇺
Abstract
The conversion nu_L -> nu_R 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 \gamma^* 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.
Comments: 7 pages, LaTeX, 1 EPS figure, submitted to Modern Physics Letters A