Family Symmetry and Neutrino Mixing
- 7 December 1998
- journal article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 81 (23) , 5064-5067
- https://doi.org/10.1103/physrevlett.81.5064
Abstract
The observed quark hierarchies suggest a simple family symmetry. Generalized to leptons through grand-unified quantum numbers, it produces a neutrino mixing matrix with order-one \nu_{\mu} - \nu_{\tau} mixing, and order-\lambda^3 \nu_e - \nu_{\mu} and \nu_e - \nu_{\tau} mixings. The intrafamily hierarchy and observed neutrino mass differences together require this symmetry to be anomalous, suggesting through the Green-Schwarz mechanism a string or M-theory origin for the symmetry.Comment: 9 pages, no figures, accepted by Phys. Rev. LetterKeywords
All Related Versions
This publication has 19 references indexed in Scilit:
- A model of Yukawa hierarchiesPhysics Letters B, 1997
- Lepton mass matrix modelsNuclear Physics B, 1995
- Yukawa textures and anomaliesPhysics Letters B, 1995
- Fermion masses and mixing angles from gauge symmetriesPhysics Letters B, 1994
- Approximate flavor symmetries in the lepton sectorPhysical Review D, 1994
- Stitching the Yukawa quiltNuclear Physics B, 1993
- Should squarks be degenerate?Physics Letters B, 1993
- Mass matrix modelsNuclear Physics B, 1993
- Parametrization of the Kobayashi-Maskawa MatrixPhysical Review Letters, 1983
- Hierarchy of quark masses, cabibbo angles and CP violationNuclear Physics B, 1979