Fermion masses, neutrino mixing and CP violation from the anti-grand unification model

Details Fermion masses, neutrino mixing and CP violation from the anti-grand unification model Fermion masses, neutrino mixing and CP violation from the anti-grand unification model

1997-06-02

arxiv.org/abs/hep-ph/9706212v1

Int.J.Mod.Phys. A13 (1998) 5037-5074

Physics

High Energy Physics

High Energy Physics - Phenomenology

40 pages, LaTeX, uses FeynTeX package for figures

Scientific paper

10.1142/S0217751X98002353

The fermion masses and mixing angles are fitted using only 3 free parameters in a non-supersymmetric extension of the Standard Model, with new approximately conserved chiral gauge quantum numbers broken by a set of Higgs fields. The fundamental mass scale of this anti-grand unification model is given by the Planck mass. We also calculate neutrino mixing angles and masses, as well as CP violation from the CKM matrix. A good fit is obtained to the observed fermion masses but our predictions of the neutrino masses are too small to lead to any observable neutrino oscillation effects claimed today, without introducing another mass scale. We also give some arguments in support of this type of model based on the observed fermion masses.

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