Spontaneous Breaking of N=2 Global Supersymmetry
I. Antoniadis, H. Partouche, T.R. Taylor
TL;DR
This paper investigates spontaneous supersymmetry breaking in N=2 theories, revealing new magnetic FI terms and conditions under which N=2 supersymmetry is broken to N=1 or restored in the vacuum.
Contribution
It introduces a magnetic Fayet-Iliopoulos term in N=2 theories and analyzes conditions for partial or full supersymmetry breaking or preservation.
Findings
Magnetic FI terms can induce N=2 to N=1 breaking.
Scalar potential can lead to N=2 supersymmetric vacua with dyon condensation.
Most general action includes both electric and magnetic FI terms.
Abstract
We study spontaneous supersymmetry breaking in N=2 globally supersymmetric theories describing a system of abelian vector multiplets. We find that 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, N=2 supersymmetry is broken down spontaneously to N=1. In some cases however, the scalar potential can drive the theory towards a N=2 supersymmetric ground state where massless dyons condense in the vacuum.
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