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
收藏
页码：1369 / 1376
页数：8
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