IMPROVED HEAVY QUARK EFFECTIVE THEORY CURRENTS

被引：13

作者：

HERNANDEZ, OF ^{[1
]}

HILL, BR ^{[1
]}

机构：

[1] UNIV CALIF LOS ANGELES,DEPT PHYS,LOS ANGELES,CA 90024

来源：

PHYSICS LETTERS B | 1992年 / 289卷 / 3-4期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/0370-2693(92)91242-2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

It is hoped that the accuracy of a variety of lattice calculations will be improved by perturbatively eliminating effects proportional to the lattice spacing. In this paper, we apply this improvement program to the heavy quark effective theory currents which cause a heavy quark to decay into a light quark, and renormalize the resulting operators to order alpha(s). We find a small decrease in the amount that the operator needs to be renormalized, relative to the unimproved case.

引用

页码：417 / 422

页数：6

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