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arXiv · 1410.7915

Radiative decay of keV-mass sterile neutrinos in a strongly magnetized plasma

Alexandra A. Dobrynina·Nicolay V. Mikheev·Georg G. Raffelt
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Abstract

The radiative decay of sterile neutrinos with typical masses of 10 keV is investigated in the presence of a strong magnetic field and degenerate plasma. Full account is taken of the strongly modified photon dispersion relation relative to vacuum. The limiting cases of relativistic and non-relativistic plasma are analyzed. The decay rate in a strongly magnetized plasma as a function of the electron number density is compared with the un-magnetized case. We find that a strong magnetic field suppresses the catalyzing influence of the plasma on the decay rate.

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Alexandra A. Dobrynina, Nicolay V. Mikheev, Georg G. Raffelt. 2015-01-07. Radiative decay of keV-mass sterile neutrinos in a strongly magnetized plasma. https://doi.org/10.1103/physrevd.90.113015

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