Models

Abstract

We are now in position to use the flavor problem to organize the SSB parameter space. First, however, the parameter space itself needs to be efficiently parameterized. We begin by postulating that supersymmetry is broken spontaneously in some “hidden” sector of the theory which contains the Goldstino and which interacts with the SM “observable” sector only via a specific agent. The agent is then the messenger of supersymmetry breaking. These messenger interactions cannot be renormalizable tree-level interactions or otherwise the SM could couple directly to the Goldstino multiplet and one would encounter many of the problems that plagued our attempt in Sect. 5.4 to break supersymmetry spontaneously in the SM sector.