Seminar in Hadronic Physics

Chiral and deconfining aspects of QCD transition at finite temperature

Peter Petreczky

Brookhaven National Laboratory

I will discuss deconfining and chiral aspects of the finite temperature transition in QCD, and the role of universality (scaling) in describing the chiral transition and in the determination of the corresponding transition temperature. I will also mention the effective restoration of U_A(1) symmetry at high temperatures. The deconfining aspects of the transition will be discussed in terms of fluctuations of conserved charges, that are sensitive to the underlying degrees of freedom, and onset of color screening. I will compare the results of the lattice calculations at low temperatures with the predictions of Hadron Resonance Gas (HRG) model.