出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We determine the curvature of the phase transition line in the m −T plane through an analysis
of various observables, including the Polyakov loop, the quark number susceptibilities and the
susceptibility of the chiral condensate. The second derivative of these quantities with respect to
m was calculated. The measurements were carried out on NT = 4,6,8 and 10 lattices generated
with a Symanzik improved gauge and stout-link improved 2+1 flavour staggered fermion action
using physical quark masses.
