Radius stabilization by constant boundary superpotentials in warped space

TL;DR

This paper investigates a warped space model with boundary superpotentials, demonstrating its effectiveness in radius stabilization, supersymmetry breaking, and analyzing the resulting mass spectra and phenomenological implications.

Contribution

It introduces a model using constant boundary superpotentials in warped space for radius stabilization and supersymmetry breaking, analyzing mass spectra and phenomenology.

Findings

Radion and moduli can have TeV-scale masses.

Gravitino mass can reach 10^7 GeV.

Soft masses from anomaly mediation can be around 100 GeV.

Abstract

A warped space model with a constant boundary superpotential has been an efficient model both to break supersymmetry and to stabilize the radius, when hypermultiplet, compensator and radion multiplet are taken into account. In such a model of the radius stabilization, the radion and moduli masses, the gravitino mass and the induced soft masses are studied. We find that a lighter physical mode composed of the radion and the moduli can have mass of the order of a TeV and that the gravitino mass can be of the order of 10$^7$ GeV. It is also shown that 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. Localized F terms and D terms are discussed as candidates of cancelling the cosmological constant. We find that there is no flavor changing neutral current problem in a wide range of parameters.