Hard thermal loops and the sphaleron rate on the lattice

被引：8
|
作者：
Bödeker, D
Moore, GD
Rummukainen, K
机构：
[1] Niels Bohr Inst, DK-2100 Copenhagen 0, Denmark
[2] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada
[3] NORDITA, DK-2100 Copenhagen 0, Denmark
来源：
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2000年 / 83-4卷
关键词：
D O I：
10.1016/S0920-5632(00)91745-6
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：
We measure the sphaleron rate (topological susceptibility) of hot SU(2) gauge theory, using a lattice implementation of the hard thermal loop (HTL) effective action. The HTL degrees of freedom are implemented by an expansion in spherical harmonics and truncation. Our results for the sphaleron rate agree with the parametric prediction of Arnold, Son and Yaffe: Gamma proportional to alpha(5)T(4).
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页码：583 / 585
页数：3
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