The hidden sector variations in the ${\cal N}=1$ supersymmetric three-family Pati-Salam models with symplectic groups from intersecting D6-branes

Abstract

It is well-known that three-family supersymmetric Pati-Salam models from intersecting D6-branes, where either one or both of the U(2) gauge factors are replaced by a USp(2) group, are quite scarce. In order to construct all such kind of models *