U(2) and maximal mixing of νμ

Lawrence J. Hall, Neal Weiner

    Research output: Contribution to journalArticle

    Abstract

    A U(2) flavor symmetry can successfully describe charged fermion masses and mixings, and suppress SUSY FCNC processes, making it a viable candidate for a theory of flavor. We show that a direct application of this i/(2) flavor symmetry automatically predicts a mixing of 45° for νμ⇒νs, where νs is a light, right-handed state. The introduction of an additional flavor symmetry acting on the right-handed neutrinos makes the model phenomenologically viable, explaining the solar neutrino deficit as well as the atmospheric neutrino anomaly, while giving a potential hot dark matter candidate and retaining the theory's predictivity in the quark sector.

    Original languageEnglish (US)
    Article number033005
    Pages (from-to)1-9
    Number of pages9
    JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
    Volume60
    Issue number3
    StatePublished - Aug 1 1999

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

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