Lattice determination of the critical point of QCD at finite T and μ

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Abstract

Based on universal arguments it is believed that there is a critical point (E) in QCD on the temperature (T) versus chemical potential (μ) plane, which is of extreme importance for heavy-ion experiments. Using finite size scaling and a recently proposed lattice method to study QCD at finite μ we determine the location of E in QCD with nf = 2 + 1 dynamical staggered quarks with semi-realistic masses on Lt = 4 lattices. Our result is T E = 160 ± 3.5 MeV and μE = 725±35 MeV. For the critical temperature at μ = 0 we obtained Tc = 172 ± 3 MeV.

Original languageEnglish
Pages (from-to)217-226
Number of pages10
JournalJournal of High Energy Physics
Volume6
Issue number3
Publication statusPublished - Mar 1 2002

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Keywords

  • Lattice Gauge Field Theories
  • Lattice QCD
  • Thermal Field Theory

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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