6533b82dfe1ef96bd12913f9
RESEARCH PRODUCT
Supernova Bounds on Supersymmetric $R$-parity Violating Interactions
Hiroshi NunokawaAnna RossiJose W.f. Vallesubject
PhysicsNuclear and High Energy PhysicsParticle physicsNeutral currentHot dark matterAstrophysics::High Energy Astrophysical PhenomenaAstrophysics (astro-ph)High Energy Physics::PhenomenologyFOS: Physical sciencesFísicaParity (physics)AstrophysicsSpectral lineSupernovaHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)NucleosynthesisR-parityHigh Energy Physics::ExperimentNeutrinodescription
We re-examine resonant massless-neutrino conversions in a dense medium induced by flavour changing neutral current (FCNC) interactions. We show how the observed $\bar\nu_e$ energy spectra from SN1987a and the supernova $r$-process nucleosynthesis provide constraints on supersymmetric models with $R$ parity violation, which are much more stringent than those obtained from the laboratory. We also suggest that resonant massless-neutrino conversions may play a positive role in supernova shock reheating. Finally, we examine the constraints on explicit $R$-parity-violating FCNCs in the presence of non-zero neutrino masses in the eV range, as indicated by present hot dark matter observations.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1996-06-26 |