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arxiv: hep-ph/9812475 · v2 · submitted 1998-12-22 · ✦ hep-ph

A Simple Grand Unification View of Neutrino Mixing and Fermion Mass Matrices

Guido Altarelli , Ferruccio Feruglio This is my paper
classification ✦ hep-ph
keywords massesfermionmassmatricesmixingneutrinoneutrinosabelian
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Assuming three light neutrinos and the see-saw mechanism we present a semiquantitative model of fermion masses based on (SUSY) SU(5) and abelian horizontal charges. A good description of the observed pattern of quark and lepton masses is obtained. For neutrinos we naturally obtain widely split masses and large atmospheric neutrino mixing as a consequence of SU(5)-related asymmetric mass matrices for d quarks and charged leptons.

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  1. Maximal Abelian Flavor Symmetries

    hep-ph 2026-06 unverdicted novelty 6.0

    MAFS approximates 15 flavor observables in SU(5) using 5 ε_a parameters and in SO(10) using 3, while requiring large neutrino mixing from quark hierarchies and generating baryon asymmetry via leptogenesis.