Two-loop computation of the Schrodinger functional in pure SU(3) lattice gauge theory

被引：36

作者：

Bode, A

Wolff, U

Weisz, P

机构：

[1] Humboldt Univ, Inst Phys, D-10099 Berlin, Germany

[2] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany

来源：

NUCLEAR PHYSICS B | 1999年 / 540卷 / 1-2期

关键词：

running coupling; lattice QCD; Schrodinger functional;

D O I：

10.1016/S0550-3213(98)00772-X

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：

We compute the Schrodinger functional (SF) for the case of pure SU(3) gauge theory at two-loop order in lattice perturbation theory. This allows us to extract the three-loop p-function in the SF scheme. These results are required to compute the running coupling, the Lambda-parameter and quark masses by finite size techniques with negligible systematic errors, In addition, we can now implement two-loop O(a) improvement in simulations and extend and study series in alternative ("tadpole-improved'') bare couplings. (C) 1999 Elsevier Science B.V.

引用

页码：491 / 499

页数：9

共 16 条

[1] Two loop expansion of the Schrodinger functional coupling αSF in SU(3) lattice gauge theory [J].