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

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.

arXiv comment9 pages, 4 figures. Presentation streamlined, results unchanged. Corresponds to version published in PRD

References in corpus (14)

• Detection of An Unidentified Emission Line in the Stacked X-ray spectrum of Galaxy Clusters
• The McGill Magnetar Catalog
• The role of sterile neutrinos in cosmology and astrophysics
• The Phenomenology of Right Handed Neutrinos
• Dark Matter, Baryogenesis and Neutrino Oscillations from Right Handed Neutrinos
• Neutrino Energy Loss from the Plasma Process at all Temperatures and Densities
• Supernova bound on keV-mass sterile neutrinos reexamined
• Cherenkov radiation by massless neutrinos in a magnetic field
• Cherenkov radiation by massless neutrinos
• The radiative decay of the massive neutrino in the external electromagnetic fields
• Resonance neutrino bremsstrahlung $\nu \to \nu \gamma$ in a strong magnetic field
• Photon splitting and Compton scattering in strongly magnetized hot plasma
• Radiative neutrino transition $\nu \to \nu \gamma$ in strongly magnetized plasma
• Influence of the photon - neutrino processes on magnetar cooling

Cited by in corpus (1)

• A Couplet from Flavored Dark Matter