On the dynamical origin of parameters in N= 2 supersymmetry

Abstract

We formulate N= 2 global supersymmetric Lagrangians of self-interacting vector multiplets in terms of variant multiplets, whose non-propagating fields are replaced with gauge three-forms. Setting the three-forms on-shell results in a dynamical generation of the parameters entering the scalar potential. As an application, we study how gauge three-forms may determine the partial breaking of N= 2 supersymmetry and how they affect the low energy effective description.