Supersymmetry Breaking by Constant Boundary Superpotentials in Warped Space

TL;DR

This paper investigates how constant boundary superpotentials in a warped space model induce supersymmetry breaking, affect the Kaluza-Klein spectrum, and stabilize the extra-dimensional radius.

Contribution

It provides a detailed calculation of the mass spectrum and demonstrates radius stabilization due to boundary superpotentials in a warped supersymmetric model.

Findings

Mass splitting resembles Scherk-Schwarz breaking for large |c|

Radius stabilization occurs with boundary superpotentials

Mass spectrum depends on bulk mass parameter c

Abstract

Supersymmetry breaking by constant (field independent) superpotentials localized at boundaries is studied in a supersymmetric warped space model. We calculate the Kaluza-Klein mass spectrum of the hypermultiplet. We take into account of the radion and the compensator supermultiplets, as well as the bulk mass $c$ for the hypermultiplet. The mass splitting is similar to that of the Scherk-Schwarz supersymmetry breaking (in flat space) for large $|c|$, and has an interesting dependence on the bulk mass parameter $c$. We show that the radius is stabilized by the presence of the constant boundary superpotentials.