Comparing Wilson and Clover quenched SU(3) spectroscopy with an improved gauge action

被引：17

作者：

Collins, S ^{[1
]}

Edwards, RG ^{[1
]}

Heller, UM ^{[1
]}

Sloan, J ^{[1
]}

机构：

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

来源：

NUCLEAR PHYSICS B | 1997年

关键词：

D O I：

10.1016/S0920-5632(96)00807-9

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 present results of quenched SU(3) hadron spectroscopy comparing O(a) improved Wilson (Clover) fermions with conventional Wilson fermions. The configurations were generated using an O(a(2)) improved 6-link SU(3) pure gauge action at beta's corresponding to lattice spacings of 0.16, 0.18, 0.21, 0.26, 0.34, and 0.42 fm. We find evidence that fermionic scaling violations are consistent with O(a(2)) for Clover and O(a) with a nonnegligible O(a(2)) term for standard Wilson fermions. This latter mixed ansatz makes a reliable continuum extrapolation problematic for Wilson fermions. We also find that the slope of the scaling violations is roughly 250MeV for both Wilson and Clover fermions.

引用

页码：877 / 879

页数：3

共 8 条

[1] GLUEBALL MASSES AND STRING TENSION IN LATTICE QCD [J].