6533b85efe1ef96bd12bff2e

RESEARCH PRODUCT

Mass of tau neutrino in SO(10) GUT-s

G. BarenboimM. Raidal

subject

PhysicsNuclear and High Energy PhysicsParticle physicsPhysics::Instrumentation and DetectorsAstrophysics::High Energy Astrophysical PhenomenaHigh Energy Physics::PhenomenologyFOS: Physical sciencesFísicaContext (language use)High Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)NucleosynthesisTau neutrinoAstrophysics::Solar and Stellar AstrophysicsHigh Energy Physics::ExperimentSO(10)NeutrinoNeutrino oscillation

description

We investigate the allowed ranges of masses for an unstable tau neutrino in the context of SO(10) GUT-s. In light of the new nucleosynthesis results we obtain that there is a narrow window for m_{\nu_\tau} where the LEP, neutrino oscillation and nucleosynthesis data are compatible. This window, which depends on the effective number of neutrinos contributing to nucleosynthesis, has important cosmological consequences and will be tested by ongoing neutrino oscillation and LEP II experiments.

10.1016/s0370-2693(97)00703-xhttp://arxiv.org/abs/hep-ph/9704211