Effects of degenerate sterile neutrinos on the supernova neutrino flux

2004/01/31 by P. Keränen, P. Keranen, J. Maalampi +3 · 9 citations
Physics and Astronomy · #Adiabatic process #Astrophysics #Astrophysics and Cosmic Phenomena #Cosmic neutrino background #Degenerate energy levels #Flux (metallurgy) #Measurements of neutrino speed #Mixing (physics) #Neutrino #Neutrino Physics Research #Neutrino oscillation #Particle physics #Particle physics theoretical and experimental studies #Physics #Solar neutrino #Solar neutrino problem #Sterile neutrino #Supernova #hep-ph

paper · pdf · open access · doi:10.1016/j.physletb.2004.07.041

published in Physics Letters B 597(3-4), 374-381 (Elsevier BV) · 12 pages. Final version to be published in Phys. Lett. B

openalex publication_date 2004/08/04 · arxiv created 2004/08/11 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We consider the possibility that there exist sterile neutrinos which are closely degenerate in mass with the active neutrinos and mixed with them. We investigate the effects of this kind of active–sterile neutrino mixing on the composition of supernova neutrino flux at the Earth. If an adiabatic MSW-transition between active and sterile neutrinos takes place, it could dramatically diminish the electron neutrino flux.

Citations

• LMA MSW solution of the solar neutrino problem and first KamLAND results
• Maximal mixing neutrino models
• Mirror model for sterile neutrinos
• Large neutrino asymmetries from neutrino oscillations
• Leptonic Domains in the Early Universe and Their Implications
• Supernova neutrinos: difference of ν–ν fluxes and conversion effects