A Natural Framework for Solar and 17 keV Neutrinos

Details A Natural Framework for Solar and 17 keV Neutrinos A Natural Framework for Solar and 17 keV Neutrinos

1992-03-08

arxiv.org/abs/hep-ph/9203202v1

Phys.Rev. D46 (1992) 364-373

Physics

High Energy Physics

High Energy Physics - Phenomenology

23 pages

Scientific paper

10.1103/PhysRevD.46.364

Motivated by recent experimental claims for the existence of a 17 keV neutrino and by the solar neutrino problem, we construct a class of models which contain in their low-energy spectrum a single light sterile neutrino and one or more Nambu-Goldstone bosons. In these models the required pattern of breaking of lepton-number symmetry takes place near the electroweak scale and all mass heirarchies are technically natural. The models are compatible with all cosmological and astrophysical constraints, and can solve the solar neutrino problem via either the MSW effect or vacuum oscillations. The deficit in atmospheric muon neutrinos seen in the Kamiokande and IMB detectors can also be explained in these models.

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