N=2 supersymmetry breaking at two different scales

TL;DR

This paper investigates the spontaneous breaking of N=2 supersymmetry at two distinct energy scales, exploring matter fields, gauge interactions, and implications for realistic Standard Model extensions.

Contribution

It introduces an off-shell analysis of N=2 supersymmetry breaking with hypermultiplets in a dual single-tensor formulation, highlighting mechanisms for chirality and multiple breaking scales.

Findings

Massless fermions can emerge from pseudo-real gauge representations.

The dual single-tensor formulation facilitates off-shell analysis.

Properties identified are relevant for realistic N=2 supersymmetric models.

Abstract

We study N=2 spontaneous supersymmetry breaking at two different scales with matter fields in hypermultiplets charged under the gauge group that should involve at least two U(1) factors. Off-shell analysis is possible in the dual single-tensor formulation of the hypermultiplets. Massless fermions can naturally arise from pseudo-real representations of the gauge group that allow a reformulation of the problem of chirality in N=2 theories. The above properties are necessary ingredients towards constructing viable extensions of the Standard Model based on N=2 supersymmetry.