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arXiv · hep-ph/0607174

Neutrinos and SU(3) Family Gauge Symmetry

Thomas Appelquist·Yang Bai·Maurizio Piai
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Abstract

We include the standard-model (SM) leptons in a recently proposed framework for the generation of quark mass ratios and Cabibbo-Kobayashi-Maskawa (CKM) mixing angles from an SU(3) family gauge interaction. The set of SM-singlet scalar fields describing the spontaneous breaking is the same as employed for the quark sector. The imposition at tree-level of the experimentally correct Pontecorvo-Maki-Nakagawa-Sakata (PMNS) mixing matrix, in the form of a tri-bi maximal structure, fixes several of the otherwise free parameters and renders the model predictive. The normal hierarchy among the neutrino masses emerges from this scheme.

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Thomas Appelquist, Yang Bai, Maurizio Piai. 2006-10-09. Neutrinos and SU(3) Family Gauge Symmetry. https://doi.org/10.1103/physrevd.74.076001

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