The thermodynamics of the quark-gluon plasma: Self-consistent resummations vs. lattice data

Details The thermodynamics of the quark-gluon plasma: Self-consistent resummations vs. lattice data The thermodynamics of the quark-gluon plasma: Self-consistent resummations vs. lattice data

2001-04-03

arxiv.org/abs/hep-ph/0104033v1

Nucl.Phys. A698 (2002) 404-407

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages LaTeX2e, contribution to the proceedings of the 15th International Conference on Ultra-Relativistic Nucleus-Nucleus Co

Scientific paper

10.1016/S0375-9474(01)01390-2

We discuss a recent approach for overcoming the poor convergence of the perturbative expansion for the thermodynamic potential of QCD. This approach is based on self-consistent approximations which allow for a gauge-invariant and manifestly ultraviolet-finite resummation of the essential physics of the hard thermal/dense loops. The results thus obtained are in good agreement with available lattice data down to temperatures of about twice the critical temperature. Calculations for a plasma with finite quark density (i.e., with a non-zero chemical potential $\mu$) are no more difficult than at $\mu=0$.

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