1998/08/10 by Utpal Sarkar · 2 citations
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.1103/physrevd.59.037302
published as Phys.Rev. D59 (1999) 037302 · 11 pages latex file
arxiv created 1998/08/10 · openalex publication_date 1999/01/11 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
A simple extension of the standard model is proposed in which all the three generations of neutrinos are Dirac particles and are naturally light. We then assume that the neutrino mass matrix is diagonal and degenerate, with a few eV mass to solve the dark matter problem. The self-energy radiative corrections, however, remove this degeneracy and allow mixing of these neutrinos. The electroweak radiative corrections then predict a lower bound on the \ensuremathν_\ensuremathμ\ensuremath-\ensuremathνe mass difference which solves the solar neutrino problem through the MSW mechanism and also predict a lower bound on the \ensuremathν_\ensuremathτ\ensuremath-\ensuremathν_\ensuremathμ mass difference which is just enough to explain the atmospheric neutrino problem as reported by Super-Kamiokande.