O(a) improvement of the axial current in lattice QCD to one-loop order of perturbation theory

被引：149

作者：

Luscher, M ^{[1
]}

Weisz, P ^{[1
]}

机构：

[1] MAX PLANCK INST PHYS & ASTROPHYS,D-80805 MUNICH,GERMANY

来源：

NUCLEAR PHYSICS B | 1996年 / 479卷 / 1-2期

关键词：

elementary particle physics; quantumchromodynamics (QCD); lattice gauge theory; chiral symmetry; Symanzik improvement; numerical simulations; perturbation theory;

D O I：

10.1016/0550-3213(96)00448-8

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：

The conservation of the isovector axial current in lattice QCD with massless Wilson quarks is studied to one-loop ol der of perturbation theory. Following a strategy described in a previous publication, the O(a) counterterm required for on-shell improvement of the current is computed. We also confirm an earlier result of Wohlert for the coefficient in front of the SW term in the improved action.

引用

页码：429 / 458

页数：30

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