Abstract
We study the flavor sector in models where the three families of matter are unified in a (16, 3) representation of the SO(10)×A4 group. The necessary ingredients to realize tribimaximal mixing in the lepton sector are identified systematically. The nonrenormalizable operators contributing to the fermion mass matrices play an important role. We also present a mechanism to explain the interfamily mass hierarchy of quarks and charged leptons, which relies on a "universal seesaw" mechanism and is compatible with tribimaximal mixing. © 2008 The American Physical Society.
Original language | English |
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Pages (from-to) | 116018 |
Journal | Physical Review D |
Volume | 78 |
Issue number | 11 |
DOIs | |
Publication status | Published - 2008 |