Chiral perturbation theory for the Wilson lattice action

被引：113
|
作者：
Rupak, G
Shoresh, N
机构：
[1] TRIUMF, Vancouver, BC V6T 2A3, Canada
[2] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA
[3] Univ Washington, Dept Phys, Seattle, WA 98195 USA
[4] Boston Univ, Dept Phys, Boston, MA 02215 USA
来源：
PHYSICAL REVIEW D | 2002年 / 66卷 / 05期
关键词：
D O I：
10.1103/PhysRevD.66.054503
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We extend chiral perturbation theory to include linear dependence on the lattice spacing a for the Wilson action. The perturbation theory is written as a double expansion in the small quark mass m(q) and lattice spacing a. We present formulas for the mass and decay constant of a flavor-nonsinglet meson in this scheme to order a and m(q)(2). The extension to the partially quenched theory is also described.
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页数：6
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