The Nelson-Seiberg theorem dictates conditions for the spontaneous breaking of supersymmetry in Wess–Zumino models with generic, possibly nonrenormalizable, superpotential; existence R-symmetry is necessary while sufficient. If we restrict ourselves to generic but renormalizable theories, however, there exist whose vacua break spontaneously preserving supersymmetry. classification and such exce...

In this talk I review the issues of supersymmetry breaking and radion stabilization in a five dimensional theory compactified on the Z 2 orbifold. Supersymmetry breaking by Scherk-Schwarz boundary conditions is interpreted as spontaneous breaking of local supersymmetry by the Hosotani mechanism. The auxiliary field responsible for spontaneous supersymmetry breaking is inside the five-dimensiona...

We describe a simple class of supersymmetric gauge theories that can act as supersymmetry-breaking sectors for gauge-mediated supersymmetry breaking. The models have a local supersymmetry-breaking minimum along a direction in field space where a singlet gets a large expectation value. The potential along this direction has a runaway behavior stabilized by supersymmetry breaking in the effective...