Determination of the fragmentation functions from an NLO QCD analysis of the HERMES data on pion multiplicities

被引：16
|
作者：
Leader, Elliot [1 ]
Sidorov, Alexander V. [2 ]
Stamenov, Dimiter B. [3 ]
机构：
[1] Univ London Imperial Coll Sci Technol & Med, Prince Consort Rd, London SW7 2BW, England
[2] Joint Inst Nucl Res, Bogoliubov Theoret Lab, Dubna 141980, Russia
[3] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, Blvd Tsarigradsko Chaussee 72, BU-1784 Sofia, Bulgaria
来源：
PHYSICAL REVIEW D | 2016年 / 93卷 / 07期
基金：
俄罗斯基础研究基金会;
关键词：
PARTON DISTRIBUTIONS;
D O I：
10.1103/PhysRevD.93.074026
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
An NLO QCD analysis of the final HERMES data on pion multiplicities is presented and a new set of pion fragmentation functions is extracted from the best fit to the data. We have studied the so-called [x, z] and [Q(2), z] presentations of their data, as given by HERMES, which, in principle, should simply be two different ways of presenting the experimental data. We have based our extraction on an excellent fit to the [Q(2), z] presentation of the data.
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页数：9
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