NNLO hard-thermal-loop thermodynamics for QCD

被引:71
|
作者
Andersen, Jens O. [1 ]
Leganger, Lars E. [1 ]
Strickland, Michael [2 ,3 ]
Su, Nan [3 ]
机构
[1] Norwegian Univ Sci & Technol, Dept Phys, N-7491 Trondheim, Norway
[2] Gettysburg Coll, Dept Phys, Gettysburg, PA 17325 USA
[3] Frankfurt Inst Adv Studies, D-60438 Frankfurt, Germany
关键词
QCD; Thermodynamics; Resummation; Quark-gluon plasma; QUARK-GLUON PLASMA; 3-LOOP FREE-ENERGY; QUANTUM CHROMODYNAMICS; PERSPECTIVE; TRANSITION; MATTER; MODEL;
D O I
10.1016/j.physletb.2010.12.070
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
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 similar to 2T(c). (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:468 / 472
页数:5
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