# Supersymmetric QCD with $N_f<N$ revisited

## TL;DR

This paper revisits supersymmetric QCD with fewer flavors than colors, introducing new meson singlet degrees of freedom and an alternative superpotential to analyze supersymmetry breaking.

## Contribution

It introduces additional meson singlet supermultiplets and constructs a new superpotential, providing a novel analysis of supersymmetry breaking conditions in this regime.

## Key findings

- Supersymmetry remains unbroken for N/2 < N_f < N.
- Supersymmetry is dynamically broken for N_f ≤ N/2.
- The new superpotential is consistent with the theory's constraints.

## Abstract

We introduce in supersymmetric QCD with $N_f<N$ additional meson singlet degrees of freedom made of $2N_f-2$ supermultiplets. We construct an alternative superpotential with $N_f^2$ constraints and show its consistency. Based on this superpotential we prove that for $\frac{N}{2}<N_f<N$ the supersymmetry is unbroken whereas for $N_f\leq\frac{N}{2}$ is dynamically broken.