Three-loop HTL QCD thermodynamics
| Autor: | Andersen, Jens O., Leganger, Lars E., Strickland, Michael, Su, Nan |
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| Rok vydání: | 2011 |
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| Zdroj: | JHEP 1108:053,2011 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1007/JHEP08(2011)053 |
| Popis: | The hard-thermal-loop perturbation theory (HTLpt) framework is used to calculate the thermodynamic functions of a quark-gluon plasma to three-loop order. This is the highest order accessible by finite temperature perturbation theory applied to a non-Abelian gauge theory before the high-temperature infrared catastrophe. All ultraviolet divergences are eliminated by renormalization of the vacuum, the HTL mass parameters, and the strong coupling constant. After choosing a prescription for the mass parameters, the three-loop results for the pressure and trace anomaly are found to be in very good agreement with recent lattice data down to $T \sim 2-3\,T_c$, which are temperatures accessible by current and forthcoming heavy-ion collision experiments. Comment: 27 pages, 11 figures; corresponds with published version in JHEP |
| Databáze: | arXiv |
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