Chiral-symmetry breaking in lattice QCD with two and four fermion flavors

Steven Gottlieb, W. Liu, D. Toussaint, R. L. Renken, R. L. Sugar

Research output: Contribution to journalArticlepeer-review

137 Scopus citations


We study the thermodynamics of lattice quantum chromodynamics for two and four flavors of staggered fermions at temperature T=1/4a, where a is the lattice spacing. For four flavors with mass below 0.05/a we find evidence for a first-order chiral-symmetry-breaking phase transition. For two flavors there is an increasingly rapid crossover as the mass is lowered, but we find no conclusive evidence of a first-order transition for quark masses down to 0.0125/a. A rough estimate is made of the zero-mass transition temperature for two flavors of quarks.

Original languageEnglish (US)
Pages (from-to)3972-3980
Number of pages9
JournalPhysical Review D
Issue number12
StatePublished - 1987

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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