Phase diagram of QCD at finite temperature and chemical potential from lattice simulations with dynamical Wilson quarks

We present the first results for lattice QCD at finite temperature T and chemical potential {mu} with four flavors of Wilson quarks. The calculations are performed using the imaginary chemical potential method at {kappa}=0,0.001,0.15,0.165,0.17 and 0.25, where {kappa} is the hopping parameter, related to the bare quark mass m and lattice spacing a by {kappa}=1/(2ma+8). Such a method allows us to do large scale Monte Carlo simulations at imaginary chemical potential {mu}=i{mu}{sub I}. By analytic continuation of the data with {mu}{sub I}<{pi}T/3 to real values of the chemical potential, we expect at each {kappa} set-membership sign [0,{kappa}{sub chiral}], a phase transition line on the ({mu},T) plane, in a region relevant to the search for quark-gluon plasma in heavy-ion collision experiments. The transition is first order at small or large quark mass, and becomes a crossover at intermediate quark mass.

• Publication year

  2004

• Venue

  Physical Review D

• Publication date

  2004-11-17

• Fields of study

  Physics

• Identifiers
  DOI 10.1103/PhysRevD.72.034504arXiv hep-lat/0411023
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

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• No concepts are published for this paper.

• No references are available for this paper.

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