The QCD equation of state at finite T and μ

Abstract

We calculate the pressure (p), the energy density (ε) and the baryon density (n_B) of QCD at finite temperatures (T) and chemical potentials (μ). The recently proposed overlap improving multi-parameter reweighting technique is used to determine observables at nonvanishing chemical potentials. Our results are obtained by studying n_f=2+1 dynamical staggered quarks with semi-realistic masses on N_t=4 lattices.

3 pages, 6 figures, Lattice2002(nonzerot)

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