Revealing topological structure in the SU(2) vacuum

被引：62

作者：

DeGrand, T ^{[1
]}

Hasenfratz, A ^{[1
]}

Kovacs, TG ^{[1
]}

机构：

[1] Univ Colorado, Dept Phys, Boulder, CO 80309 USA

来源：

NUCLEAR PHYSICS B | 1998年 / 520卷 / 1-2期

关键词：

D O I：

10.1016/S0550-3213(98)00181-3

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：

In this paper we derive a simple parametrization of the cycling method developed by us in our earlier work. The new method, called renormalization group (RG) mapping, consists of a series of carefully tuned APE-smearing steps. We study the relation between cycling and RG mapping. We also investigate in detail how smooth instantons and instanton-anti-instanton pairs behave under the RG mapping transformation. We use the RG-mapping technique to study the topological susceptibility and instanton size distribution of SU(2) gauge theory. We find scaling in both quantities in a wide range of coupling values. Our result for the topological susceptibility, chi(1/4) = 220(6) MeV, agrees with our earlier results. (C) 1998 Elsevier Science B.V.

引用

页码：301 / 322

页数：22

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