Lattice QCD with Eight Degenerate Quark Flavors

TL;DR

This paper investigates the properties of lattice QCD with eight degenerate quark flavors using numerical simulations to understand chiral symmetry breaking and the continuum limit behavior.

Contribution

It presents the first detailed lattice study of QCD with eight degenerate flavors, analyzing hadron spectrum scaling and string tension to explore chiral symmetry.

Findings

Scaling behavior of hadron spectrum studied

String tension measurements conducted

Insights into chiral symmetry breaking obtained

Abstract

We report on simulations of QCD with many flavors of degenerate quarks, the DBW2 gauge action and naive staggered fermions, using the rational hybrid Monte Carlo algorithm. We primarily focus on eight degenerate quark flavors where a variety of values of the coupling constant and quark mass have been used in the simulations. The scaling behavior of the hadron spectrum and the string tension of the heavy quark potential is studied, to probe whether the zero temperature, continuum limit of the theory breaks chiral symmetry.