Speaker
Description
We summarise recent theoretical results on the QCD phase diagram and the properties of hadrons at finite temperature and chemical potential based on a combination of lattice QCD and Dyson-Schwinger equations. We discuss the location of the critical end point, the quality of extrapolations from imaginary to real chemical potential and the silver blaze property of mesons with different quantum numbers along the zero-T-finite-mu-axis. We furthermore investigate the influence of mesonic long range fluctuations on the order of the phase transition in the limit of vanishing up/down quark masses, varying the strange quark mass from zero to infinity. We find a second order phase transition for the whole left hand boundary of the Columbia plot in contrast to expectations based on the Pisarski/Wilczek
