The QCD phase diagram at nonzero quark density

Understand

We determine the phase diagram of QCD on the \mu-T plane for small to moderate chemical potentials.

• Two transition lines are defined with two quantities, the chiral condensate and the strange quark number susceptibility.
• The calculations are carried out on N_t =6,8 and 10 lattices generated with a Symanzik improved gauge and stout-link improved 2+1 flavor staggered fermion action using physical quark masses.
• After carrying out the continuum extrapolation we find that both quantities result in a similar curvature of the transition line.