The QCD Phase Transition Region with Domain Wall Quarks

TL;DR

This paper investigates the QCD phase transition using domain wall fermions on a lattice, analyzing chiral properties and symmetry breaking across a range of temperatures to improve understanding of QCD thermodynamics.

Contribution

It provides new lattice QCD results with domain wall fermions in the transition region, emphasizing chiral symmetry and comparing with previous staggered fermion studies.

Findings

Chiral condensates and susceptibilities measured across temperatures.

Observation of anomalous symmetry breaking effects.

Comparison with staggered fermion results enhances understanding.

Abstract

Results will be presented from a study of the QCD transition region using 2+1 flavors of fermions and a dislocation suppressing gauge action on a lattice with temporal extent of 8 and spatial extent 16 (1.9 - 2.7 fm). A series of temperatures from 140 through 200 MeV, separated by 10 MeV have been studied. All the simulations lie on a line of constant physics with 200 MeV pions, realized using domain wall fermion, a chirally symmetric fermion formulation. The chiral condensates, susceptibility, anomalous symmetry breaking and a detailed study of the Dirac spectrum will be described and compared with earlier staggered results.