Effective superpotential and partial breaking of N=2 supersymmetry

TL;DR

This paper derives a formula for the effective superpotential in an N=2 supersymmetric U(N) gauge model, demonstrating spontaneous partial breaking to N=1 through loop diagram calculations.

Contribution

It introduces a new computation of the effective superpotential for N=2 gauge models with partial supersymmetry breaking, extending known results from N=1 models.

Findings

Derived a deformed effective superpotential formula for N=2 to N=1 breaking

Performed loop diagram calculations to obtain the superpotential

Showed the superpotential differs from the standard N=1 form

Abstract

We consider the effective superpotential of N=2, U(N) gauge model where N=2 supersymmetry is spontaneously broken to N=1. By the computation of loop diagrams, we obtain a formula for the effective superpotential which is deformed from the well-known form of the effective superpotential of N=1, U(N) gauge model with a tree level superpotential.