The critical end point of quantum chromodynamics

Details The critical end point of quantum chromodynamics The critical end point of quantum chromodynamics

2005-09-27

arxiv.org/abs/hep-lat/0509151v1

PoS LAT2005 (2005) 160

Physics

High Energy Physics

High Energy Physics - Lattice

6 pages, Contribution to LATTICE 2005 (Non-zero temperature and density)

Scientific paper

We investigate the critical end point (CEP) 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 approximately 0.95 and mu_B^E/T^E approximately 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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