PARTON INTERPRETATION OF THE NUCLEON SPIN-DEPENDENT STRUCTURE FUNCTIONS

被引：19

作者：

MANKIEWICZ, L ^{[1
]}

RYZAK, Z ^{[1
]}

机构：

[1] HARVARD UNIV,LYMAN LAB PHYS,CAMBRIDGE,MA 02138

来源：

PHYSICAL REVIEW D | 1991年 / 43卷 / 03期

关键词：

D O I：

10.1103/PhysRevD.43.733

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We discuss the interpretation of the nucleon's polarized structure function g2(x). If the target state is represented by its Fock decomposition on the light cone, the operator-product expansion allows us to demonstrate that moments of g2(x) are related to overlap integrals between wave functions of opposite longitudinal polarizations. In the light-cone formalism such wave functions are related by the kinematical operator y, or light-cone parity. As a consequence, it can be shown that moments of g2 give information about the same parton wave function, or probability amplitude to find a certain parton configuration in the target which defines g1(x) or F2(x). Specific formulas are given, and possible applications to the phenomenology of the nucleon structure in QCD are discussed.

引用

页码：733 / 750

页数：18

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