1998/09/09 by J. Sato, Joe Sato, T. Yanagida · 46 citations
Computer Science · Mathematics · Physics and Astronomy · #Combinatorics #Computational Physics and Python Applications #Computer science #Coset #Grand Unified Theory #Lepton #Mathematics #Mixing (physics) #Neutrino #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #SO(10) #Seesaw molecular geometry #Space (punctuation) #Supersymmetry #Unification #hep-ph
paper · pdf · doi:10.1016/s0920-5632(99)00431-4
published in Nuclear Physics B - Proceedings Supplements 77(1-3), 293-298 (Elsevier BV) · 9 pages. Talk given by T. Yanagida at Neutrino 98, Takayama, Japan, 4-9 June, 1998
arxiv created 1998/09/09 · openalex publication_date 1999/05/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We show that the large mixing between νμ and ντ observed by the SuperKamiokande collaboration is a quite natural prediction in a large class of seesaw models. This large mixing is basically due to the unparallel family structure suggested from the observed mass hierarchies in quark and lepton mass matrices. We show that the unparallel family structure is automatically realized in ``coset-space family unification'' model based on E7/SU(5) × U(1)3. This model also suggests the small angle MSW solution to the solar neutrino problem.