Resolving exceptional configurations

被引：8

作者：

Bardeen, W

Duncan, A

Eichten, E

Hockney, G

Thacker, H

机构：

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

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

[3] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

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

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 1998年 / 63卷

关键词：

D O I：

10.1016/S0920-5632(97)00705-6

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 lattice QCD with Wilson fermions, exceptional configurations arise in the quenched approximation at small quark mass. The origin of these large previously uncontrolled lattice artifacts is identified. A simple well-defined procedure (MQA) is presented which removes the artifacts while preserving the correct continuum limit.

引用

页码：141 / 146

页数：6

共 17 条

[1] CHIRAL SYMMETRY-BREAKING IN CONFINING THEORIES [J].

BANKS, T ;

CASHER, A .

NUCLEAR PHYSICS B, 1980, 169 (1-2) :103-125

[2] TOWARDS THE CHIRAL LIMIT WITH DYNAMIC BLOCKED WILSON FERMIONS [J].

BARBOUR, I ;

LAERMANN, E ;

LIPPERT, T ;

SCHILLING, K .

PHYSICAL REVIEW D, 1992, 46 (08) :3618-3629

[3]

BARDEEN W, FERMILABPUB97121T

[4]

BARDEEN W, FERMILABPUB97119T

[5] PROPERTIES OF B-MESONS IN LATTICE QCD [J].

DUNCAN, A ;

EICHTEN, E ;

FLYNN, J ;

HILL, B ;

HOCKNEY, G ;

THACKER, H .

PHYSICAL REVIEW D, 1995, 51 (09) :5101-5129

[6] THE IMPROVEMENT OF HADRONIC MATRIX-ELEMENTS IN LATTICE QCD [J].

HEATLIE, G ;

SACHRAJDA, CT ;

MARTINELLI, G ;

PITTORI, C ;

ROSSI, GC .

NUCLEAR PHYSICS B, 1991, 352 (01) :266-288

[7] U(1) PROBLEM AND TOPOLOGICAL EXCITATIONS ON A LATTICE [J].

ITOH, S ;

IWASAKI, Y ;

YOSHIE, T .

PHYSICAL REVIEW D, 1987, 36 (02) :527-545

[8] THE U(1) PROBLEM AND INSTANTONS ON A LATTICE [J].

ITOH, S ;

IWASAKI, Y ;

YOSHIE, T .

PHYSICS LETTERS B, 1987, 184 (04) :375-380

[9]

Iwasaki Y., 1989, Nuclear Physics B, Proceedings Supplements, V9, P254, DOI 10.1016/0920-5632(89)90108-4

[10] ETA'-MESON MASS IN LATTICE QCD [J].

KURAMASHI, Y ;

FUKUGITA, M ;

MINO, H ;

OKAWA, M ;

UKAWA, A .

PHYSICAL REVIEW LETTERS, 1994, 72 (22) :3448-3451

← 1 2 →