Minimal Supersymmetric Pati-Salam Theory: Determination of Physical Scales
Abstract
We systematically study the minimal supersymmetric Pati-Salam theory, paying special attention to the unification constraints. We find that the SU(4)c scale Mc and the Left-Right scale MR lie in the range 1010 GeV < Mc < 1014 GeV, 103 GeV < MR <1010 GeV (with single-step breaking at 1010 GeV), giving a potentially accessible scale of parity breaking. The theory includes the possibility of having doubly-charged supermultiplets at the supersymmetry breaking scale; color octet states with mass of order MR2/Mc; magnetic monopoles of intermediate mass that do not conflict with cosmology, and a 'clean' (type I) form for the see-saw mechanism of neutrino mass.
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