SCRI results with the tadpole-improved clover action

被引：3

作者：

Collins, S

Edwards, RG

Heller, UM

Sloan, J

机构：

[1] FLORIDA STATE UNIV, SUPERCOMP COMPUTAT RES INST, TALLAHASSEE, FL 32306 USA

[2] UNIV KENTUCKY, DEPT PHYS & ASTRON, LEXINGTON, KY 40506 USA

来源：

NUCLEAR PHYSICS B | 1998年

关键词：

D O I：

10.1016/S0920-5632(97)00464-7

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：

I discuss a study performed by the SCRI lattice gauge theory group which compared light hadron spectroscopy using the Wilson and Clover fermionic actions. We showed that a Clover coefficient chosen using tadpole-improved tree-level perturbation theory effectively eliminates the O(a) discretization errors present in the Wilson action. We found that discretization errors in light spectroscopy for both the Wilson and Clover actions are characterized by an energy scale mu of about 200-300 MeV, indicating that these errors can be reduced to the 5% level by using the Clover action at an inverse lattice spacing of about 1.3 GeV.

引用

页码：34 / 42

页数：9

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