Radion Mediated Supersymmetry Breaking as a Scherk-Schwarz Theory

TL;DR

This paper establishes a direct link between radion-mediated and Scherk-Schwarz supersymmetry breaking, demonstrating their equivalence and leveraging UV softness to compute soft masses without cutoff sensitivity.

Contribution

It explicitly shows the transformation connecting radion mediation to Scherk-Schwarz breaking and uses UV properties to calculate soft masses free from cutoff dependence.

Findings

Radion mediation and Scherk-Schwarz breaking are equivalent theories.

One-loop soft masses can be computed without cutoff sensitivity.

The UV softness of Scherk-Schwarz theories simplifies mass calculations.

Abstract

Recently, it has been demonstrated that radion mediated supersymmetry breaking gives the same spectrum as Scherk-Schwarz supersymmetry breaking, and can be interpreted as a dynamical realization of it. We make this connection explicit by exhibiting the direct transformation from one theory to the other. We then use the extreme UV softness of Scherk-Schwarz theories to calculate the one-loop soft masses of matter fields. We do not find any cutoff sensitive ``Kaluza-Klein mediated'' contributions.