Energy and pressure densities of a hot quark-gluon plasma

Details Energy and pressure densities of a hot quark-gluon plasma Energy and pressure densities of a hot quark-gluon plasma

1995-11-07

arxiv.org/abs/hep-ph/9511254v1

Phys.Rev. D53 (1996) 3406-3420

Physics

High Energy Physics

High Energy Physics - Phenomenology

33 pages. Figures are not included

Scientific paper

10.1103/PhysRevD.53.3406

We calculate the energy and hydrostatic pressure densities of a hot quark-gluon plasma in thermal equilibrium through diagrammatic analyses of the statistical average, $\langle \Theta_{\mu \nu} \rangle$, of the energy-momentum-tensor operator $\Theta_{\mu \nu}$. To leading order at high temperature, the energy density of the long wave length modes is consistently extracted by applying the hard-thermal-loop resummation scheme to the operator-inserted no-leg thermal amplitudes $\langle \Theta_{\mu \nu} \rangle$. We find that, for the long wave length gluons, the energy density, being positive, is tremendously enhanced as compared to the noninteracting case, while, for the quarks, no noticeable deviation from the noninteracting case is found.

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