MSSM and Large $tan\beta$ from SUSY Trinification

Abstract

We construct a supersymmetric model based on the semi-simple gauge group $SU(3{)}_c\times SU(3{)}_L\times SU(3{)}_R$ with the relation $tan\beta \simeq m_t/m_b$ automatically arising from its structure. The model below a scale $\sim 10^{16}$ GeV gives naturally rise just to the minimal supersymmetric standard model and therefore to the presently favored values for $si{n}^2{\theta }_w$ and ${\alpha }_s$ without fields in representations higher than the fundamental.

Comments: 9 pages, LaTeX, UT-STPD-3-94