Abstract
The recently reported spectral anomalies in tritium, 35S and 14C beta decays and the observed solar neutrino deficit may be simply understood in a model without heavy leptons. We present a simple SU(2) ⊗ U(1) model where all neutrino masses arise radiatively. Two 17 keV states form the quasi-Dirac tau neutrino v s that decays invisibly as v s → v e, μ +majoron with a lifetime that can be shorter than ∼10 8s. The solar neutrino data can be understood through matter-enchanced v e → v μ oscillations. Improved v e disappearance experiments as well as v e, μ → v τ oscillation searches can test the model. The splitting of the quasi-Dirac neutrino can be revealed not only through the process v τ → v sterile but also in the conventional v e, μ → v τ oscillations.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
