Spontaneous Breaking of N=2 to N=1 in Rigid and Local Supersymmetric Theories

TL;DR

This paper explores how partial supersymmetry breaking from N=2 to N=1 occurs in both rigid and supergravity theories, revealing that certain rigid theory breakings can be derived from supergravity models through a flat limit.

Contribution

It demonstrates that partial supersymmetry breaking in rigid theories can be obtained from supergravity models via a flat limit, linking these two frameworks.

Findings

Partial supersymmetry breaking induced by Fayet-Iliopoulos terms in rigid theories.

Correspondence between rigid and supergravity models through a flat limit.

Connection between supergravity partial super-Higgs and rigid theory breaking.

Abstract

We analyze the relation between rigid and local supersymmetric N=2 field theories, when half of the supersymmetries are spontaneously broken. In particular, we show that the recently found partial supersymmety breaking induced by electric and magnetic Fayet-Iliopoulos terms in rigid theories can be obtained by a suitable flat limit of previously constructed N=2 supergravity models with partial super-Higgs in the observable sector.