Hard-thermal-loop perturbation theory to two loops

被引：126

作者：

Andersen, JO

Braaten, E

Petitgirard, E

Strickland, M

机构：

[1] Univ Utrecht, Inst Theoret Phys, NL-3584 CC Utrecht, Netherlands

[2] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

[3] Duke Univ, Dept Phys, Durham, NC 27708 USA

来源：

PHYSICAL REVIEW D | 2002年 / 66卷 / 08期

关键词：

D O I：

10.1103/PhysRevD.66.085016

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We calculate the pressure for pure-glue QCD at high temperature to two-loop order using hard-thermal-loop (HTL) perturbation theory. At this order, all the ultraviolet divergences can be absorbed into renormalizations of the vacuum energy density and the HTL mass parameter. We determine the HTL mass parameter by a variational prescription. The resulting predictions for the pressure fail to agree with results from lattice gauge theory at temperatures for which they are available.

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页数：37

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