A Remark on Brane Stabilization in Brane World

TL;DR

This paper explores mechanisms for stabilizing branes in brane world models, focusing on supersymmetry-preserving and breaking scenarios within specific four-dimensional orientifold models, demonstrating stabilization at finite distances.

Contribution

It presents explicit examples of brane stabilization mechanisms in N=1 supersymmetric orientifold models, including both supersymmetry-preserving and breaking cases, with detailed dynamical analysis.

Findings

Branes are stabilized at finite distances from orientifold planes.

Supersymmetry-preserving stabilization via non-perturbative gauge dynamics.

Supersymmetry-breaking stabilization through superpotential and Kahler potential interplay.

Abstract

In this note we discuss dynamical mechanisms for brane stabilization in the brane world context. In particular, we consider supersymmetry preserving brane stabilization, and also brane stabilization accompanied by supersymmetry breaking. These mechanisms are realized in some four dimensional N=1 supersymmetric orientifold models. For illustrative purposes we consider two explicit orientifold models previously constructed in hep-th/9806008. In both of these models branes are stabilized at a finite distance from the orientifold planes. In the first model brane stabilization occurs via supersymmetry preserving non-perturbative gauge dynamics. In the second model supersymmetry is dynamically broken, and brane stabilization is due to an interplay between non-perturbatively generated superpotential and tree-level Kahler potential.