Light Unstable Sterile Neutrino

Abstract

The three massless active (doublet) neutrinos may mix with two heavy and one \underline {light} sterile (singlet) neutrinos so that the induced masses and mixings among the former are able to explain the present data on atmospheric and solar neutrino oscillations. If the LSND result is also to be explained, one active neutrino mass eigenstate must mix with the light sterile neutrino. A specific model is proposed with the spontaneous and soft explicit breaking of a new global $U(1{)}_S$ symmetry so that a sterile neutrino will decay into an active antineutrino and a nearly massless pseudo-Majoron.

Discussion and references added

References in corpus (8)

• Measurement of the rate of nu_e + d --> p + p + e^- interactions produced by 8B solar neutrinos at the Sudbury Neutrino Observatory
• Tau Neutrinos Favored over Sterile Neutrinos in Atmospheric Muon Neutrino Oscillations
• Constraints on Neutrino Oscillations Using 1258 Days of Super-Kamiokande Solar Neutrino Data
• Naturally Small Seesaw Neutrino Mass with No New Physics Beyond the TeV Scale
• Verifiable Model of Neutrino Masses from Large Extra Dimensions
• Pseudo-Dirac Scenario for Neutrino Oscillations
• Generalized Bounds on Majoron-neutrino couplings
• Light Sterile Neutrinos from Large Extra Dimensions

Cited by in corpus (13)

• Sterile neutrino oscillations after first MiniBooNE results
• The MiniBooNE anomaly and heavy neutrino decay
• Explaining LSND by a decaying sterile neutrino
• Resolution of puzzles from the LSND, KARMEN, and MiniBooNE experiments
• Statistical Analysis of Different Muon-antineutrino->Electron-antineutrino Searches
• Reconciling results of LSND, MiniBooNE and other experiments with soft decoherence
• Exploring a Non-Minimal Sterile Neutrino Model Involving Decay at IceCube and Beyond
• Constraining Mass Spectra with Sterile Neutrinos from Neutrinoless Double Beta Decay, Tritium Beta Decay and Cosmology
• Decays of supernova neutrinos
• Heavy Sterile Neutrinos in Tau Decays and the MiniBooNE Anomaly
• LSND versus MiniBooNE: Sterile neutrinos with energy dependent masses and mixing?
• On Sterile neutrino explanation of LSND and MiniBooNE anomalies
• Implications of the Super-K atmospheric data for the mixing angles ${\theta }_{13}$ and ${\theta }_{23}$