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We propose two simple models for the quark mass matrices which may beimplemented through an S3 x Z2 symmetry in a supersymmetric context. Each modelhas eight parameters and, therefore, makes two independent predictions for thequark mixing matrix. The first model predicts |Vub / Vcb| approx sqrt{m_u /m_c} sim 0.06 and |Vtd / Vts| approx sqrt{m_d / m_s} sim 0.23. The secondmodel, in which the forms of the up-type-quark and down-type-quark massmatrices are interchanged relative to the first one, predicts |Vub / Vcb| sim0.11 and |Vtd / Vts| sim 0.33. Both models have sin(2 beta) sim 0.5.Comment: 10 pages latex, no figures, no table

TWO PREDICTIVE SUPERSYMMETRIC S3×Z2 MODELS FOR THE QUARK MASS MATRICES

TWO PREDICTIVE SUPERSYMMETRIC S₃×Z₂ MODELS FOR THE QUARK MASS MATRICES