Anomaly Mediation and Radius Stabilization by a Boundary Constant Superpotential in a Warped Space

TL;DR

This paper proposes a simple supersymmetric Randall-Sundrum model with a boundary superpotential that stabilizes the extra dimension radius, addresses anomaly mediation dominance, and solves the -problem through localized SUSY breaking.

Contribution

It introduces a novel radius stabilization mechanism using a boundary constant superpotential in a SUSY warped space model, integrating anomaly mediation and -problem solutions.

Findings

A wide parameter space favors anomaly mediation dominance.

Negative cosmological constant can be canceled by localized SUSY breaking.

The -problem is addressed via the Giudice-Masiero mechanism.

Abstract

We present a very simple model of the radius stabilization in a supersymmetric (SUSY) Randall-Sundrum model with a hypermultiplet and a boundary constant superpotential. A wide range of parameters where the anomaly mediation of SUSY breaking is dominated is found although there are many problematic bulk effects of SUSY breaking. A negative cosmological constant in the radius stabilized vacuum can be cancelled by a localized SUSY breaking. Making use of this localized SUSY breaking also solves the \mu-problem by Giudice-Masiero mechanism.