Low Energy Theorem for SUSY Breaking with Gauge Supermultiplets

TL;DR

This paper investigates low energy theorems related to Nambu-Goldstone fermions in supersymmetric gauge theories, proposing a framework to handle massless and massive gauge particles and gauginos through an effective Lagrangian.

Contribution

It introduces a novel effective Lagrangian approach for describing low energy interactions of NG-fermions in gauge supermultiplets with mass variations.

Findings

Two terms are necessary in the effective Lagrangian to account for massless particles.

A concrete model demonstrates interpolation between massless and massive states.

The approach clarifies low energy interactions in supersymmetric gauge theories.

Abstract

Low energy theorems of Nambu-Goldstone fermion associated with spontaneously broken supersymmetry are studied for gauge supermultiplets. Two possible terms in the effective Lagrangian are needed to deal with massless gaugino and/or massless gauge boson. As an illustrative example, a concrete model is worked out which can interpolate massless as well as massive gaugino and/or gauge boson to examine the low energy effective interaction of NG-fermion.