1998/10/31 by Yue-Liang Wu · 1 citation
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.60.073010
published as Phys.Rev. D60 (1999) 073010 · 10 pages, Revtex, no figures, minor changes and references added, the version to appear in Phys. Rev. D
arxiv created 1999/06/10 · openalex publication_date 1999/09/10 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Based on the SO(3) gauge symmetry for three family leptons and the general seesaw mechanism, we present a simple scheme that allows three nearly degenerate Majorana neutrino masses needed for hot dark matter. The vacuum structure of the spontaneous SO(3) symmetry breaking can automatically lead to a maximal CP-violating phase. Thus the current neutrino data on both the atmospheric neutrino anomaly and solar neutrino deficit can be accounted for via maximal mixings without conflict with the current data on the neutrinoless double \ensuremathβ decay. The model also allows rich interesting phenomena on lepton flavor violations.