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

Z. Fodor·S. D. Katz
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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 μwe determine the location of E in QCD with n_f=2+1 dynamical staggered quarks with semi-realistic masses on $L_t=4$ lattices. Our result is T_E=160 \pm 3.5 MeV and μ_E= 725 \pm 35 MeV. For the critical temperature at μ=0 we obtained T_c=172 \pm 3 MeV.

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Z. Fodor, S. D. Katz. 2002-03-18. Lattice determination of the critical point of QCD at finite T and μ. https://doi.org/10.1088/1126-6708%2F2002%2F03%2F014

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