Pressure of QCD at finite temperatures and chemical potentials

A. Vuorinen
2003 Physical Review D, Particles and fields  
The perturbative expansion of the pressure of hot QCD is computed here to order g^6ln(g) in the presence of finite quark chemical potentials. In this process all two- and three-loop one-particle irreducible vacuum diagrams of the theory are evaluated at arbitrary T and mu, and these results are then used to analytically verify the outcome of an old order g^4 calculation of Freedman and McLerran for the zero-temperature pressure. The results for the pressure and the different quark number
more » ... quark number susceptibilities at high T are compared with recent lattice simulations showing excellent agreement especially for the chemical potential dependent part of the pressure.
doi:10.1103/physrevd.68.054017 fatcat:z443fxwkvfbsjlm2wvdy56vmjy