QUARK AND GLUON CONTENT OF THE PROTON SPIN

被引：31

作者：

EFREMOV, AV

SOFFER, J

TORNQVIST, NA

机构：

[1] CNRS,CTR PHYS THEOR,F-13288 MARSEILLE,FRANCE

[2] UNIV HELSINKI,HIGH ENERGY PHYS RES INST,SF-00170 HELSINKI 17,FINLAND

来源：

PHYSICAL REVIEW D | 1991年 / 44卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.44.1369

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We examine the role of quarks and gluons in polarized deep-inelastic scattering in connection with the famous European Muon Collaboration experimental result. The gluon contribution generated by the axial anomaly is shown to have a well-defined physical meaning and its gauge-invariance properties are fully clarified. We also emphasize the role of the ghost contribution in the generalized Goldberger-Treiman relation and give a detailed calculation of the correction due to unequal quark masses and to pi-0-eta-eta' mixing.

引用

页码：1369 / 1376

页数：8

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