Supersymmetry Breaking and Radius Stabilization by Constant Boundary Superpotentials in Warped Space

TL;DR

This paper investigates how constant boundary superpotentials in a warped space model can simultaneously break supersymmetry and stabilize the extra-dimensional radius, with implications for particle masses and phenomenology.

Contribution

It introduces a mechanism for supersymmetry breaking and radius stabilization using boundary superpotentials in a warped space, analyzing the resulting mass spectrum and dependencies.

Findings

Soft mass from anomaly mediation can reach ~100 GeV.

Radion and moduli form a light mode with mass around 1 TeV.

Gravitino mass can be as high as 10^7 GeV.

Abstract

Supersymmetry breaking and radius stabilization by constant superpotentials localized at boundaries is studied in a supersymmetric warped space model where a hypermultiplet, a compensator and a radion multiplet are taken into account. Soft mass induced by the anomaly mediation can be of the order of 100GeV and can be dominant compared to that mediated by bulk fields. A lighter physical mode composed of the radion and the moduli can have mass of the order of a TeV and the gravitino mass can be of the order of 10^7 GeV. The radius is stabilized by the presence of the constant boundary superpotentials. We also find that the mass splitting has an interesting dependence on the bulk mass parameter c.