Evidence for discrete chiral symmetry breaking in N=1 supersymmetric Yang-Mills theory

TL;DR

This paper provides numerical evidence for spontaneous discrete chiral symmetry breaking in N=1 supersymmetric SU(2) Yang-Mills theory, supporting theoretical predictions through Monte Carlo simulations showing degenerate ground states at zero gaugino mass.

Contribution

The study offers the first numerical confirmation of discrete chiral symmetry breaking in N=1 supersymmetric Yang-Mills theory using lattice simulations.

Findings

Degenerate ground states at zero gaugino mass

Evidence of spontaneous discrete chiral symmetry breaking

Supports theoretical gaugino condensation predictions

Abstract

In a numerical Monte Carlo simulation of SU(2) Yang-Mills theory with dynamical gauginos we find evidence for two degenerate ground states at the supersymmetry point corresponding to zero gaugino mass. This is consistent with the expected pattern of spontaneous discrete chiral symmetry breaking $Z_4 \to Z_2$ caused by gaugino condensation.