Equation of State of Gluon Plasma from Gribov Region

Details Equation of State of Gluon Plasma from Gribov Region Equation of State of Gluon Plasma from Gribov Region

2005-09-27

arxiv.org/abs/hep-ph/0509296v1

PoS LAT2005 (2005) 191

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 1 figure, contribution to Proceedings of Lattice 2005

Scientific paper

We describe the gluon plasma in zeroth order as a gas of free quasi-particles with a temperature-independent dispersion relation of Gribov type, $E(k) = \sqrt{k^2 + {M^4 \over k^2}}$, that results from the restriction of the physical state space to the Gribov region. The effective mass ${M^2 \over k}$ controls infrared divergences of finite-temperature perturbation theory. The equation of state of this gas is calculated and compared with numerical lattice data. At high temperature $T$ there are power corrections to the Stefan-Boltzmann law that are of relative order $1/T^3$ for pressure and $1/T^4$ for energy.

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