The absence of observable proton decay in a global SU(5) F-theory model

Abstract

Abstract We begin with an E8× E8 Heterotic model broken to an SU(5)gauge× U(1)X and a twin SU(5)gauge× U(1)X, where one SU(5) and its spectrum is identified as the visible sector while the other can be identified as a hidden twin sector. In both cases we obtain the minimal supersymmetric standard model (MSSM) spectrum after Wilson-line symmetry-breaking enhanced by a low energy R-parity and $$ {\mathbb{Z}}_4^R $$ ℤ 4 R symmetry. We argue that there will not be any observable proton decay in this model.