Dynamical SUSY Breaking in Intersecting Brane Models

TL;DR

This paper proposes a new mechanism for dynamical supersymmetry breaking in intersecting brane models, utilizing worldsheet instantons to generate a small scale without relying on non-Abelian gauge dynamics or D-instantons.

Contribution

It introduces a novel approach to SUSY breaking using worldsheet instantons, expanding the toolkit for model building in string phenomenology.

Findings

Demonstrates a natural generation of exponentially small SUSY breaking scale.

Provides a simple, alternative mechanism to existing SUSY breaking methods.

Highlights the role of worldsheet instantons in string theory models.

Abstract

We present a simple mechanism by which supersymmetry can be dynamically broken in intersecting brane models, naturally generating an exponentially small scale. Rather than utilize either non-Abelian gauge dynamics or D-instantons, our mechanism uses worldsheet instantons to generate the small scale in a hidden sector.