6533b7d4fe1ef96bd1262684
RESEARCH PRODUCT
17 keV neutrino in a singlet-triplet majoron model
Arcadi SantamariaKiwoon Choisubject
PhysicsNuclear and High Energy PhysicsParticle physicsPhysics::Instrumentation and DetectorsAstrophysics::High Energy Astrophysical PhenomenaHigh Energy Physics::PhenomenologyDark matterX-ray backgroundAstrophysics::Cosmology and Extragalactic AstrophysicsLepton numberCosmologyNuclear physicsHigh Energy Physics::ExperimentSinglet stateNeutrinoMajoronBosondescription
Abstract We investigate the possibility of a cosmologically safe 17 keV neutrino which may have been observed in the decays of tritium, S 35 , and C 14 within a singlet-triplet majoron model. Consideration of the leptonic decay of K + and X rays associated with the radiative decay of massive relic neutrinos severely constrains the scale of the spontaneous lepton number violation. It is argued that the mass density of relic 17 keV neutrinos is constrained as Ω v ⩽ 0.05 h −1 (0.01/ sin 2 θ ) in view of the observed diffuse X ray background.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1991-09-01 | Physics Letters B |