Higher-Derivative Gravitation and a New Mechanism for Supersymmetry Breaking in Four-Dimensions
Higher-Derivative Gravitation and a New Mechanism for Supersymmetry Breaking in Four-Dimensions
A discussion of the number of degrees of freedom, and their dynamical properties, in higher derivative gravitational theories is presented. The complete non-linear sigma model for these degrees of freedom is exhibited using the method of auxiliary fields. As a by-product we present a consistent non-linear coupling of a spin-2 …