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26 April 2024 |
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Equation of State of Gluon Plasma from Gribov Region | | Daniel Zwanziger
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27 Sep 2005 | | Subject: | hep-ph | | Abstract: | 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. | | Source: | arXiv, hep-ph/0509296 | | Services: | Forum | Review | PDF | Favorites | |
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