LATTICE CALCULATION OF THE KAON-MATRIX-ELEMENT B-PARAMETER

被引：68

作者：

KILCUP, GW

SHARPE, SR

GUPTA, R

PATEL, A

机构：

[1] UNIV WASHINGTON,DEPT PHYS,FM-15,SEATTLE,WA 98195

[2] UNIV CALIF LOS ALAMOS SCI LAB,DIV THEORET,LOS ALAMOS,NM 87545

[3] CERN,THEORY GRP,GENEVA 23,SWITZERLAND

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.64.25

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have calculated the kaon-matrix-element B parameter (BK) using lattice QCD in the quenched approximation with staggered fermions. We find the correct chiral behavior. Errors from all sources except quenching are under control. At a lattice scale of 2 GeV our result is BK=0.700.01(statistical)0.03(systematic). This translates to a renormalization-group-invariant value B^K=0.91.0.. AE. © 1990 The American Physical Society.

引用

页码：25 / 28

页数：4

共 18 条

[11] A TOOL KIT FOR STAGGERED FERMIONS [J].