About functional methods in superspace

Abstract

A superfield functional formalism can be defined in such a way that one can easily parallel all the perturbative calculations of the conventional functional approach. As a byproduct of this functional formulation, we reobtain the class of superfield transformations with unit jacobian and we illustrate the fact that supersymmetric theories allow a non-local, non-linear superfield redefinition that leads to a quadratic action.