Measuring infrared contributions to the QCD pressure

被引：6

作者：

Kajantie, K

Laine, M

Rummukainen, K

Schröder, Y

机构：

[1] Univ Helsinki, Dept Phys, FIN-00014 Helsinki, Finland

[2] CERN, Div Theory, CH-1211 Geneva 23, Switzerland

[3] NORDITA, DK-2100 Copenhagen O, Denmark

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2002年 / 106卷

关键词：

D O I：

10.1016/S0920-5632(01)01768-6

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

For the pressure (or free energy) of QCD, four-dimensional (4d) lattice data is available at zero baryon density up to a few times the critical temperature T-c. Perturbation theory, on the other hand, has serious convergence problems even at very high temperatures. In a combined analytical and three-dimensional (3d) lattice method, we show that it is possible to compute the QCD pressure from about 2T(c) to infinity. The numerical accuracy is good enough to resolve in principle, e.g., logarithmic contributions related to 4-loop perturbation theory.

引用

页码：525 / 527

页数：3

共 12 条

[1]

BLAIZOT J, HEPPH0101103

[2] Thermodynamics of SU(3) lattice gauge theory [J].