Strange and charmed quarks in the nucleon

被引：28

作者：

Zhitnitsky, AR

机构：

[1] Physics Department, University of British Columbia, Vancouver, BC, V6T 1Z1

来源：

PHYSICAL REVIEW D | 1997年 / 55卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.55.3006

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We discuss the general method of the calculation of the nucleon matrix elements of an operator associated with nonvalence quarks. The method is based on the QCD sum rules and low energy theorems. As an application of these considerations, we calculate the strange quark matrix element as well as the momentum distribution of the strangness in the nucleon. We also calculate the singlet axial constant associated with eta' meson as well as an axial constant associated with heavy quarks.

引用

页码：3006 / 3015

页数：10

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