The two-loop relation between the bare lattice coupling and the (MS)over-bar coupling in QCD with Wilson fermions

被引：4

作者：

Christou, C

Feo, A

Panagopoulos, H

Vicari, E

机构：

[1] Univ Cyprus, Dept Nat Sci, CY-1678 Nicosia, Cyprus

[2] Univ Pisa, Dipartimento Fis, I-56126 Pisa, Italy

[3] INFN, I-56126 Pisa, Italy

来源：

PHYSICS LETTERS B | 1998年 / 426卷 / 1-2期

关键词：

lattice QCD; lattice gauge theory; beta function; asymptotic scaling; lattice perturbation theory;

D O I：

10.1016/S0370-2693(98)00278-0

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We calculate the two-loop relation between the coupling renormalized in the (MS)over-bar scheme and the bare lattice coupling go in QCD with Wilson fermions, extending the pure gauge results of Luscher and Weisz. Our calculation leads to the the third coefficient of the lattice beta function. We show how this coefficient modifies the scaling function on the lattice. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：121 / 124

页数：4

共 8 条

[1] LATTICE PERTURBATION-THEORY BY COMPUTER ALGEBRA - A 3-LOOP RESULT FOR THE TOPOLOGICAL SUSCEPTIBILITY [J].