Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2007-10-15
Phys.Rev.D76:115020,2007
Physics
High Energy Physics
High Energy Physics - Phenomenology
16 pages,typos corrected,accepted for publication in Phys.Rev.D1
Scientific paper
10.1103/PhysRevD.76.115020
We propose a supersymmetric model of quark flavor symmetry based on SU(3)colorxSU(3)WxU(1)X x T' where T' (binary tetrahedral group) is a discrete flavor symmetry group. The third (heavy) generation of quarks are assigned to singlet representation of T' while light quark generations are treated differently and assigned to doublet representation of T' . The model generates masses for heavy quarks as in 3-3-1 case. The quark mass terms for the second generation are obtained when T' symmetry is broken at leading order and for first generation with small higher order corrections .The flavor-changing neutral current (FCNC) effects are suppressed at leading order for third to second generation quark transitions due to T' breaking which is an attractive feature of the 3-3-1 model with T' symmetry.
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