Goldstino superfields in N = 2 $$ \mathcal{N}=2 $$ supergravity

Abstract

Abstract We present off-shell N = 2 $$ \mathcal{N}=2 $$ supergravity actions, which exhibit spontaneously broken local supersymmetry and allow for de Sitter vacua for certain values of the parameters. They are obtained by coupling the standard N = 2 $$ \mathcal{N}=2 $$ supergravity-matter systems to the Goldstino superfields introduced in arXiv:1105.3001 and arXiv:1607.01277 in the rigid supersymmetric case. These N = 2 $$ \mathcal{N}=2 $$ Goldstino superfields include nilpotent chiral and linear supermultiplets. We also describe a new reducible N = 1 $$ \mathcal{N}=1 $$ Goldstino supermultiplet.

Keywords

• Extended Supersymmetry
• Supergravity Models
• Superspaces
• Supersymmetry Breaking