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

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

2001-06-08

arxiv.org/abs/hep-lat/0106002v2

JHEP 0203 (2002) 014

Physics

High Energy Physics

High Energy Physics - Lattice

misprints corrected, version to appear in JHEP

Scientific paper

10.1088/1126-6708/2002/03/014

Based on universal arguments it is believed that there is a critical point (E) in QCD on the temperature (T) versus chemical potential (\mu) 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 \mu we 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 \mu_E= 725 \pm 35 MeV. For the critical temperature at \mu=0 we obtained T_c=172 \pm 3 MeV.

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