Improved flavor symmetry in Kogut-Susskind fermion actions

被引：27

作者：

Orginos, K ^{[1
]}

Sugar, R

Toussaint, D

机构：

[1] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA

[2] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2000年 / 83-4卷

关键词：

D O I：

10.1016/S0920-5632(00)00470-9

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 study improved Kogut-Susskind fermion actions focusing on flavor symmetry restoration. Several variants of fat actions suitable for dynamical simulations are considered, including an action with no tree level O(a(2)) errors. The spectrum of all the pions is computed and used as a measure of flavor symmetry violation. Finally, the Naik term is introduced to restore rotational symmetry.

引用

页码：878 / 880

页数：3

共 9 条

[1] Instanton effects in hadron spectroscopy in SU(2) (lattice) gauge theory [J].