NNLO hard-thermal-loop thermodynamics for QCD

Autor: Andersen, Jens O., Leganger, Lars E., Strickland, Michael, Su, Nan
Rok vydání: 2010
Předmět:
Zdroj: Phys.Lett.B696:468-472,2011
Druh dokumentu: Working Paper
DOI: 10.1016/j.physletb.2010.12.070
Popis: We calculate the thermodynamic functions of a quark-gluon plasma for general N_c and N_f to three-loop order using hard-thermal-loop perturbation theory. At this order, all the ultraviolet divergences can be absorbed into renormalizations of the vacuum, the HTL mass parameters, and the strong coupling constant.We show that at three loops, the results for the pressure and trace anomaly are in very good agreement with recent lattice data down to temperatures T~2T_c.
Comment: 8 pages, 2 figs
Databáze: arXiv