The critical end point of quantum chromodynamics
Abstract
Description
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.
6 pages, Contribution to LATTICE 2005 (Non-zero temperature and density)
6 pages, Contribution to LATTICE 2005 (Non-zero temperature and density)