Moduli Stabilization for Intersecting Brane Worlds in Type 0' String Theory

TL;DR

This paper constructs non-supersymmetric four-dimensional brane world models from type 0' string theory, demonstrating moduli stabilization and realistic particle spectra with intersecting D6-branes on internal tori.

Contribution

It introduces a method to stabilize geometric moduli in non-supersymmetric string models with intersecting branes, advancing realistic model building.

Findings

Scalar potential stabilizes geometric moduli

Model supports chiral fermions and realistic gauge groups

Dilaton tadpole remains uncanceled

Abstract

Starting from the non-supersymmetric, tachyon-free orientifold of type 0 string theory, we construct four-dimensional brane world models with D6-branes intersecting at angles on internal tori. They support phenomenologically interesting gauge theories with chiral fermions. Despite the theory being non-supersymmetric the perturbative scalar potential induced at leading order is shown to stabilize geometric moduli, leaving only the dilaton tadpole uncanceled. As an example we present a three generation model with gauge group and fermion spectrum close to a left-right symmetric extension of the Standard Model.