(S)quark Masses and Non-Abelian Horizontal Symmetries

Details (S)quark Masses and Non-Abelian Horizontal Symmetries (S)quark Masses and Non-Abelian Horizontal Symmetries

1993-08-30

arxiv.org/abs/hep-ph/9308363v1

Phys.Lett.B318:169-173,1993

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, RU-93-39

Scientific paper

10.1016/0370-2693(93)91801-S

We present a model of quark and squark masses which is based on a non-Abelian horizontal symmetry. It leads to order of magnitude relations between quark mass ratios and mixing angles and to the successful exact relation $\sin \theta_C=\sqrt {m_d\over m_s}$ to better than $20\%$ accuracy. The non-Abelian symmetry also ensures the necessary squark degeneracy to suppress FCNC mediated by loops with squarks and gluinos, in the neutral meson systems.

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