Higher order quark-mesonic scattering processes and the phase structure   of QCD
  We study the impact of higher order quark-meson scattering processes on the chiral phase structure of two-flavour QCD at finite temperature and quark density. Thermal, density and quantum fluctuations are included within a functional renormalisation group approach to the quark-meson model. We present results on the chiral phase boundary, the critical endpoint, and the curvature of the phase transition line at vanishing density. 
Jan M. Pawlowski and Fabian Rennecke
hep-ph hep-th nucl-th