6533b820fe1ef96bd12790f3
RESEARCH PRODUCT
Supernova bounds on resonant active-sterile neutrino conversions
Hiroshi NunokawaJose W.f. ValleJ.t. PeltoniemiAnna Rossisubject
Nuclear and High Energy PhysicsParticle physicsSterile neutrinoAstrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesParameter spaceAstrophysics01 natural sciences7. Clean energyHigh Energy Physics - Phenomenology (hep-ph)Nucleosynthesis0103 physical sciences010306 general physicsAstrophysics::Galaxy AstrophysicsMixing (physics)Physics010308 nuclear & particles physicsHot dark matterAstrophysics (astro-ph)High Energy Physics::PhenomenologyFísicaHigh Energy Physics - PhenomenologySupernovar-processHigh Energy Physics::ExperimentNeutrinodescription
We discuss the effects of resonant $\nu_e \to \nu_s$ and $\bar{\nu}_e \to \bar{\nu}_s$ ($\nu_s$ is a sterile neutrino) conversions in the dense medium of a supernova. In particular, we assume the sterile neutrino $\nu_s$ to be in the hot dark matter few eV mass range. The implications of such a scenario for the supernova shock re-heating, the detected $\bar\nu_e$ signal from SN1987A and for the r-process nucleosynthesis hypothesis are analysed in some detail. The resulting constraints on mixing and mass difference for the $\nu_e-\nu_s$ system are derived. There is also an allowed region in the neutrino parameter space for which the r-process nucleosynthesis can be enhanced.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1997-02-19 | Physical Review D |