Statistical approach for unpolarized fragmentation functions for the octet baryons

被引：22

作者：

Bourrely, C ^{[1
]}

Soffer, J ^{[1
]}

机构：

[1] Ctr Phys Theor, CNRS, UPR 7061, F-13288 Marseille 09, France

来源：

PHYSICAL REVIEW D | 2003年 / 68卷 / 01期

关键词：

D O I：

10.1103/PhysRevD.68.014003

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A statistical model for the parton distributions in the nucleon has proven its efficiency in the analysis of deep inelastic scattering data, so we propose to extend this approach to the description of unpolarized fragmentation functions for the octet baryons. The characteristics of the model are determined by using some data on the inclusive production of the proton and Lambda in unpolarized deep inelastic scattering and a next-to-leading analysis of the available experimental data on the production of unpolarized octet baryons in e(+) e(-) annihilation. Our results show that both parton distributions and fragmentation functions are compatible with the statistical approach, in terms of a few free parameters, whose interpretation will be discussed.

引用

页数：6

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