QCD Analysis of the semi-inclusive HERMES and COMPASS data

被引：0
作者：
O. Yu. Shevchenko
R. R. Akhunzyanov
V. Yu. Lavrentyev
机构：
[1] Joint Institute for Nuclear Research,
来源：
Physics of Particles and Nuclei | 2013年 / 44卷
关键词：
Pion Production; Nucleon Spin; HERMES Collaboration; SIDIS Data; Deuteron Target;
D O I：
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学科分类号：
摘要：
The first moments of polarized valence PDFs, responsible for the respective contributions to the nucleon spin, are extracted in NLO QCD from the data of COMPASS and HERMES collaborations on the semi-inclusive difference asymmetries. To this end the new method of QCD analysis (alternative to the usual global fit analysis) is applied. Using the obtained results on valence PDFs the first moments of polarized sea PDFs are reconstructed. They turn out surprisingly small: compatible with zeros within the errors.
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页码：490 / 493
页数：3
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