Scaling and topological charge of a fixed-point action for SU(2) gauge theory

被引：41
作者：
DeGrand, T
Hasenfratz, A
Zhu, DC
机构：
[1] Department of Physics, University of Colorado, Boulder
来源：
NUCLEAR PHYSICS B | 1996年 / 478卷 / 1-2期
基金：
美国国家科学基金会;
关键词：
instantons; lattice gauge theory;
D O I：
10.1016/0550-3213(96)00419-1
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 construct a few-parameter approximate fixed-point action for SU(2) pure gauge theory and subject it to scaling tests, via Monte Carlo simulation. We measure the critical coupling for deconfinement for lattices of temporal extent N-t = 2, 3, 4, the torelon mass at fixed physical volume, and the string tension (and heavy quark potential) from Wilson loops. We calculate the topological susceptibility using inverse blocking and show that it scales over the observed range of lattice spacings.
引用
收藏
页码：349 / 364
页数：16
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