Quenched chiral artifacts for Wilson-Dirac fermions

被引：15

作者：

Bardeen, W ^{[1
]}

Duncan, A

Eichten, E

Thacker, H

机构：

[1] Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA

[2] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA

[3] Univ Virginia, Dept Phys, Charlottesville, VA 22901 USA

来源：

PHYSICAL REVIEW D | 1999年 / 59卷 / 01期

关键词：

D O I：

10.1103/PhysRevD.59.014507

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We examine artifacts associated with the chiral symmetry breaking induced through the use of Wilson-Dirac fermions in lattice Monte Carlo computations. For light quark masses, the conventional quenched theory cannot be defined using direct Monte Carlo methods due to the existence of nonintegrable poles in physical quantities. These poles are associated with the red eigenvalue spectrum of the Wilson-Dirac operator. We show how this singularity structure can be observed in the analysis of both QED in two dimensions and QCD in four dimensions. [S0556-2821(98)07323-8].

引用

页数：9

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