Bottom-tau Yukawa non-unification in supersymmetric SU(5) with an Abelian flavor symmetry

Details Bottom-tau Yukawa non-unification in supersymmetric SU(5) with an Abelian flavor symmetry Bottom-tau Yukawa non-unification in supersymmetric SU(5) with an Abelian flavor symmetry

2003-06-23

arxiv.org/abs/hep-ph/0306206v2

Phys.Lett.B578:176-180,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages. References added. Corrected a factor of 1/2 missing in eqs.5-7

Scientific paper

10.1016/j.physletb.2003.10.100

We present a supersymmetric SU(5) x U(1)_H model, free from gauge anomalies, where the Abelian factor U(1)_H, introduced to account for the hierarchy of fermion masses and mixings, is broken by the same adjoint representations of SU(5) that also break the GUT symmetry. The model predicts approximate, but never exact, bottom-tau Yukawa unification. The deviations are related to group theoretical coefficients and can naturally be at the level of 10%-20%.

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