Instanton content of the SU(3) vacuum

被引：63

作者：

Hasenfratz, A ^{[1
]}

Nieter, C ^{[1
]}

机构：

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

来源：

PHYSICS LETTERS B | 1998年 / 439卷 / 3-4期

关键词：

D O I：

10.1016/S0370-2693(98)01058-2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the topological content of the SU(3) vacuum using the renormalization group (RG) mapping method. RG mapping is a simple smoothing algorithm, in which a series of APE-smearing steps are done while the topological content of the configuration is carefully monitored. This monitoring process makes it possible to separate true topological objects from vacuum fluctuations and allows an extrapolation to zero smearing steps. Using RG mapping we have measured the instanton distribution and topological susceptibility for SU(3) gauge theory. We arrive at a value for the topological susceptibily, chi(1/4) of 203(5) MeV. The size distribution peaks at rho = 0.3 fm, and is in good agreement with the prediction of instanton liquid models. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：366 / 372

页数：7

共 24 条

[1] Topological susceptibility at zero and finite T in SU(3) Yang-Mills theory [J].