Gauged Discrete Symmetries and Proton Stability

Details Gauged Discrete Symmetries and Proton Stability Gauged Discrete Symmetries and Proton Stability

2007-07-27

arxiv.org/abs/0707.4070v2

Phys.Rev.D76:095003,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 2 figures; v2 : typos fixed, references added

Scientific paper

10.1103/PhysRevD.76.095003

We discuss the results of a search for anomaly free Abelian Z_N discrete symmetries that lead to automatic R-parity conservation and prevents dangerous higher-dimensional proton decay operators in simple extensions of the minimal supersymmetric extension of the standard model (MSSM) based on the left-right symmetric group, the Pati-Salam group and SO(10). We require that the superpotential for the models have enough structures to be able to give correct symmetry breaking to MSSM and potentially realistic fermion masses. We find viable models in each of the extensions and for all the cases, anomaly freedom of the discrete symmetry restricts the number of generations.

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