6533b82dfe1ef96bd1290911

RESEARCH PRODUCT

Resonant conversion of massless neutrinos in supernovae

Hiroshi NunokawaJose W.f. ValleAnna RossiYong Zhong Qian

subject

PhysicsNuclear and High Energy PhysicsParticle physicsAstrophysics::High Energy Astrophysical PhenomenaAstrophysics (astro-ph)High Energy Physics::PhenomenologyFOS: Physical sciencesFísicaAstrophysicsNuclear physicsMassless particleSupernovaHigh Energy Physics - PhenomenologyGeneral Relativity and Quantum CosmologyHigh Energy Physics - Phenomenology (hep-ph)NucleosynthesisHigh Energy Physics::ExperimentNeutrinoNeutrino oscillationMixing (physics)Charged currentEnergy (signal processing)

description

It has been noted for a long time that, in some circumstances, {\sl massless} neutrinos may be {\sl mixed} in the leptonic charged current. Conventional neutrino oscillation searches in vacuum are insensitive to this mixing. We discuss the effects of resonant massless-neutrino conversions in the dense medium of a supernova. In particular, we show how the detected $\bar\nu_e$ energy spectra from SN1987a and the supernova $r$-process nucleosynthesis may be used to provide very stringent constraints on the mixing of {\sl massless} neutrinos.

10.1103/physrevd.54.4356http://dx.doi.org/10.1103/PhysRevD.54.4356