Gauged supergravities and spontaneous SUSY breaking from the double copy

TL;DR

This paper explores a novel double-copy construction for gauged supergravities with spontaneous supersymmetry breaking, demonstrating a new way to derive supergravity models with broken SUSY and massive gravitini.

Contribution

It introduces the first double-copy construction of gauged supergravity with spontaneous SUSY breaking, expanding the applicability of the double-copy framework.

Findings

Constructed a supergravity model with U(1)_R gauge symmetry and broken N=2 SUSY.

Demonstrated the double-copy approach applies to a broad class of gauged supergravities.

First example of double-copy for a theory with spontaneously-broken supersymmetry.

Abstract

Supergravities with gauged R-symmetry and Minkowski vacua allow for spontaneous supersymmetry breaking and, as such, provide a framework for building supergravity models of phenomenological relevance. In this letter we initiate the study of double-copy constructions for these supergravities. We argue that, on general grounds, we expect their scattering amplitudes to be described by a double copy of the type: (Higgsed gauge theory) x (gauge theory with broken SUSY). We present a simple realization in which the resulting supergravity has U(1)_R gauge symmetry, spontaneously-broken N=2 supersymmetry, and massive gravitini. This is the first instance of a double-copy construction of a gauged supergravity and of a theory with spontaneously-broken supersymmetry. The construction extends in a straightforward manner to a large family of gauged Yang-Mills-Einstein supergravity theories with or without spontaneous gauge-symmetry breaking.