The critical end point of QCD

Details The critical end point of QCD The critical end point of QCD

2004-12-22

arxiv.org/abs/hep-lat/0412035v2

Phys.Rev.D71:114014,2005

Physics

High Energy Physics

High Energy Physics - Lattice

this version contains all the figures that appear in the published journal version

Scientific paper

10.1103/PhysRevD.71.114014

We investigate the critical end point of QCD with two flavours of light dynamical quarks at finite lattice cutoff a=1/4T using a Taylor expansion of the baryon number susceptibility. We find a strong volume dependence of the position of the critical end point. In the large volume limit we obtain T^E/T_c \~ 0.95 and mu_B^E/T^E ~ 1.1, where T_c is the cross over temperature at zero chemical potential, and T^E and mu_B^E are the temperature and the baryon chemical potential at the critical end point. The small value of mu_B^E places it in the range of observability in energy scans at the RHIC.

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