Long-distance contributions to the QCD pressure

Details Long-distance contributions to the QCD pressure Long-distance contributions to the QCD pressure

2001-10-15

arxiv.org/abs/hep-ph/0110204v1

Nucl.Phys. A702 (2002) 123-127

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages; talk at Statistical QCD, Bielefeld, August 26-30, 2001

Scientific paper

10.1016/S0375-9474(02)00694-2

The QCD pressure is a most fundamental quantity, for which lattice data is available up to a few times the critical temperature $T_c$. Perturbation theory, even at very high temperatures, has serious convergence problems. Combining analytical and 3d numerical methods, we show that it is possible to compute the QCD pressure from about $2 T_c$ to infinity. We also describe an algorithm to generate and classify high order Feynman diagrams which is tailored to minimize computational effort.

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