Minimalistic Neutrino Mass Model

Abstract

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.

19 pages, 3 figures, references added, results unchanged

References in corpus (9)

• Limits on Neutrino Oscillations from the CHOOZ Experiment
• Measurement of the solar neutrino capture rate with gallium metal
• Neutrino Mass Anarchy
• Neutrino-induced upward stopping muons in Super-Kamiokande
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• Deviation of Atmospheric Mixing from Maximal and Structure in the Leptonic Flavor Sector
• Corrections to Tri-bimaximal Neutrino Mixing: Renormalization and Planck Scale Effects
• U(e3) from physics above the GUT scale
• Radiatively broken symmetries of nonhierarchical neutrinos
• Bi-large neutrino mixing and the Cabibbo angle
• Obtaining the large angle MSW solution to the solar neutrino problem in models
• Neutrinos Have Mass - So What?
• Dirac neutrinos from Peccei-Quinn symmetry: a fresh look at the axion
• Low scale gravity as the source of neutrino masses?
• Diraxiogenesis
• Supersymmetric Model of Neutrino Mass and Leptogenesis with String-Scale Unification
• Planck-scale effects on WIMP dark matter
• S.M.A.S.H.E.D.: Standard Model Axion Seesaw Higgs Inflation Extended for Dirac Neutrinos
• Gravity Effects on Neutrino Masses in Split Supersymmetry
• The origin of quark and lepton mixings
• Neutrino mass due to the mixing among neutrinos and gauginos
• Quantum Gravity on Neutrino Mass Square difference
• Explaining Solar Neutrinos with Heavy Higgs Masses in Partial Split Supersymmetry
• Progress in the understanding of neutrino properties
• Standard and non-standard neutrino properties
• Rates of neutrino conversion and decay in hot and dense QED plasma