SU(7) SUSY GUTs with a natural intermediate scale

Details SU(7) SUSY GUTs with a natural intermediate scale SU(7) SUSY GUTs with a natural intermediate scale

1996-12-15

arxiv.org/abs/hep-ph/9612365v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 1 figure (epsfig style)

Scientific paper

We investigate the SU(N) supersymmetric Grand Unified Theories with ``custodial symmetry'' mechanism to explane the doublet-triplet hierarchy. We show that in such type of SU(7) SUSY theory intermediate scale appears naturally and the correct value for sin^2(\theta)_W is predicted via vector-like matter superfields splitting. The unification appears to be closed to M_Pl for all the reasonable values of \alpha_s and M_SUSY. Due to the large unification scale the baryon number violating d=5 operator is suppressed in comparison with that in minimal SU(5) theory.

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