Relating quarks and leptons without grand-unification

Details Relating quarks and leptons without grand-unification Relating quarks and leptons without grand-unification

2011-04-08

arxiv.org/abs/1104.1633v2

Phys.Rev.D84:036003,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 2 figures, version published in PRD

Scientific paper

10.1103/PhysRevD.84.036003

In combination with supersymmetry, flavor symmetry may relate quarks with leptons, even in the absence of a grand-unification group. We propose an SU(3)xSU(2)xU(1) model where both supersymmetry and the assumed A4 flavor symmetries are softly broken, reproducing well the observed fermion mass hierarchies and predicting: (i) a relation between down-type quarks and charged lepton masses, and (ii) a correlation between the Cabibbo angle in the quark sector, and the reactor angle characterizing CP violation in neutrino oscillations.

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