6533b7d2fe1ef96bd125f5b0
RESEARCH PRODUCT
Minimalistic Neutrino Mass Model
Andre De GouveaJosé W. F. Vallesubject
PhysicsNuclear and High Energy PhysicsParticle physicsPhysics::Instrumentation and DetectorsSolar neutrinoPhysics beyond the Standard Modelmedia_common.quotation_subjectAstrophysics::High Energy Astrophysical PhenomenaHigh Energy Physics::PhenomenologyFOS: Physical sciencesFísicaAsymmetryUniverseHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)High Energy Physics::ExperimentNeutrinoAnomaly (physics)BorexinoParticle Physics - PhenomenologyLeptonmedia_commondescription
We consider the simplest model which solves the solar and atmospheric neutrino puzzles, in the sense that it contains the smallest amount of beyond the Standard Model ingredients. The solar neutrino data is accounted for by Planck-mass effects while the atmospheric neutrino anomaly is due to the existence of a single right-handed neutrino at an intermediate mass scale between 10^9 GeV and 10^14 GeV. Even though the neutrino mixing angles are not exactly predicted, they can be naturally large, which agrees well with the current experimental situation. Furthermore, the amount of lepton asymmetry produced in the early universe by the decay of the right-handed neutrino is very predictive and may be enough to explain the current baryon-to-photon ratio if the right-handed neutrinos are produced out of thermal equilibrium. One definitive test for the model is the search for anomalous seasonal effects at Borexino.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2000-10-26 |