6533b828fe1ef96bd1287a89
RESEARCH PRODUCT
Atmospheric neutrino observations and flavor changing interactions
H. NunokawaPlamen I. KrastevJose W.f. ValleM. C. Gonzalez-garciaR. Zukanovich FunchalMarcelo M. GuzzoVicente PleitezOrlando L. G. Peressubject
PhysicsSterile neutrinoParticle physicsReaccions nuclearsSolar neutrinoAstrophysics::High Energy Astrophysical PhenomenaHigh Energy Physics::PhenomenologyGeneral Physics and AstronomyFísicaFOS: Physical sciencesSolar neutrino problemPartícules (Física nuclear)Standard ModelNuclear physicsHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Measurements of neutrino speedHigh Energy Physics::ExperimentNuclear reactionsNeutrinoNeutrino oscillationZenithParticles (Nuclear physics)description
Flavor changing (FC) neutrino-matter interactions can account for the zenith-angle dependent deficit of atmospheric neutrinos observed in the SuperKamiokande experiment, without directly invoking neither neutrino mass, nor mixing. We find that FC $\nu_\mu$-matter interactions provide a good fit to the observed zenith angle distributions, comparable in quality to the neutrino oscillation hypothesis. The required FC interactions arise naturally in many attractive extensions of the Standard Model.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1999-04-19 |