Gravitational Supersymmetry Breaking

TL;DR

This paper explores a supergravity-based supersymmetry breaking model with a constant superpotential, leading to a split spectrum and potential applications in nonlinear sigma models and Fayet-Iliopoulos terms.

Contribution

It introduces a novel supersymmetry breaking mechanism using a constant superpotential in supergravity with implications for model building.

Findings

Supersymmetry breaking occurs with zero cosmological constant.

The model naturally produces a split spectrum in the supersymmetric standard model.

Potential applications include constructing nonlinear sigma models and Fayet-Iliopoulos terms.

Abstract

We consider supersymmetry breaking models with a purely constant superpotential in supergravity. The supersymmetry breaking is induced for the vanishing cosmological constant. As a hidden mediation sector of supersymmetry breaking, it naturally leads to a split spectrum in supersymmetric standard model. We also point out possible utility of our setup to construct nonlinear sigma model and/or Fayet-Iliopoulos-like term in broken supergravity.