2000/08/31 by Yoshio Koide, Ambar Ghosal · 1 citation
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.1103/physrevd.63.037301
published as Phys.Rev. D63 (2001) 037301 · 10 pages, no figures, a comment added
arxiv created 2000/09/15 · openalex publication_date 2001/01/05 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A Zee-type neutrino mass matrix model with a badly broken horizontal symmetry SU(3)H is investigated. By putting a simple ansatz on the symmetry breaking effects of SU(3)H for transition matrix elements, it is demonstrated that the model can give nearly bimaximal neutrino mixing with the ratio \ensuremathΔmsolar2/\ensuremathΔmatm2\ensuremath≃√(2)me/m_\ensuremathμ=6.7\ifmmode×\else\texttimes\fi10^\ensuremath-3, which is in excellent agreement with the observed data. In the near future, the lepton-number violating decay \stackrel\ensuremath→Z\ensuremathμ^\ifmmode±\else\textpm\fi\ensuremathτ^\ensuremath∓ will be observed.