On curvature squared terms in N = 2 supergravity

TL;DR

This paper develops a gauge-independent formulation of a curvature squared term within N=2 supergravity, detailing its supersymmetric completion and component structure.

Contribution

It provides the first gauge-independent supersymmetric completion of scalar curvature squared terms in N=2 supergravity.

Findings

Explicit gauge-independent supersymmetric action derived

Component structure of the curvature squared term elucidated

Framework for further supersymmetric curvature modifications established

Abstract

We present the N = 2 supersymmetric completion of a scalar curvature squared term in a completely gauge independent form. We also elaborate on its component structure.