A SUSY SU(5) Grand Unified Model of Tri-Bimaximal Mixing from A4
Guido Altarelli, Ferruccio Feruglio, Claudia Hagedorn
TL;DR
This paper presents a SUSY SU(5) grand unified model in extra dimensions that naturally explains neutrino mixing patterns and quark mass hierarchies using the A4xU(1) flavor symmetry.
Contribution
It introduces a novel SUSY SU(5) GUT model with extra dimensions and A4xU(1) flavor symmetry that simultaneously accounts for neutrino mixing and quark mass patterns.
Findings
Reproduces tri-bimaximal neutrino mixing with high accuracy
Provides a natural explanation for quark mass hierarchies
Integrates flavor symmetry into a grand unified framework
Abstract
We discuss a grand unified model based on SUSY SU(5) in extra dimensions and on the flavour group A4xU(1) which, besides reproducing tri-bimaximal mixing for neutrinos with the accuracy required by the data, also leads to a natural description of the observed pattern of quark masses and mixings.
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