Gravitational supersymmetry breaking

Abstract

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