Gluon propagator in the infrared region

被引：107

作者：

Leinweber, DB ^{[1
]}

Skullerud, JI

Williams, AG

Parrinello, C

机构：

[1] Univ Adelaide, Special Res Ctr Subatom Struct Mat, Adelaide, SA 5005, Australia

[2] Univ Adelaide, Dept Phys & Math Phys, Adelaide, SA 5005, Australia

[3] Univ Liverpool, Dept Math Sci, Liverpool L69 3BX, Merseyside, England

来源：

PHYSICAL REVIEW D | 1998年 / 58卷 / 03期

关键词：

D O I：

10.1103/PhysRevD.58.031501

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The gluon propagator is calculated in quenched QCD for two different lattice sizes (16(3) x 48 and 32(3) x 64) at beta = 6.0. The volume dependence of the propagator in the Landau gauge is studied. The smaller lattice is instrumental in revealing finite volume and anisotropic lattice artifacts. Methods for minimizing these artifacts are developed and applied to the larger lattice data. New structure seen in the infrared region survives these conservative cuts to the lattice data. This structure serves to rule out a number of models that have appeared in the literature. A fit to a simple analytical form capturing the momentum dependence of the nonperturbative gluon propagator is also reported. [S0556-2821(98)50215-9]

引用

页码：0315011 / 0315015

页数：5

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