Chiral Condensate and Susceptibility of SU(2) $n_f=8$ Naive Staggered System

TL;DR

This paper investigates the chiral properties and phase transition behavior of an SU(2) gauge theory with 8 fermions using lattice simulations and random matrix models, revealing insights into chiral symmetry breaking and susceptibility near the transition.

Contribution

It provides the first analysis of chiral condensate and susceptibility in SU(2) with 8 fermions using staggered fermions and random matrix theory, identifying the nature of the transition.

Findings

Identification of a phase transition or crossover at strong coupling.

Analysis of volume dependence of chiral susceptibility.

Application of chiral random matrix model to interpret results.

Abstract

The SU(2) gauge theory with 8 fundamental fermions is studied using unimproved staggered regularization. A phase transition or a crossover at strong coupling, which can be a bulk transition. By using chiral random matrix model we analyze the chiral condensate of this system. We also report the chiral susceptibility and its volume dependence near the transition point.