Dual N=2 SUSY Breaking

TL;DR

This paper explores mechanisms of spontaneous supersymmetry breaking in N=2 theories with abelian vector multiplets, highlighting conditions for partial breaking and restoration of N=2 SUSY through dyon condensation.

Contribution

It introduces the most general action with Fayet-Iliopoulos terms, including magnetic ones, and analyzes their role in SUSY breaking and restoration in N=2 theories.

Findings

Magnetic Fayet-Iliopoulos terms enable partial SUSY breaking.

Dyon condensation can restore N=2 SUSY vacua.

The work extends understanding of SUSY breaking mechanisms in N=2 models.

Abstract

We discuss spontaneous supersymmetry breaking in $N=2$ globally supersymmetric theories describing abelian vector multiplets. The most general form of the action admits, in addition to the usual Fayet-Iliopoulos term, a magnetic Fayet-Iliopoulos term for the auxiliary components of dual vector multiplets. In a generic case, this leads to a spontaneous breakdown of one of the two supersymmetries. In some cases however, dyon condensation restores $N=2$ SUSY vacuum. This talk is based on the work done in collaboration with H. Partouche \cite{apt}.