Higher twists in the pion structure function

被引：7
|
作者：
Melnitchouk, W [1 ]
机构：
[1] Jefferson Lab, Newport News, VA 23606 USA
来源：
PHYSICAL REVIEW D | 2003年 / 67卷 / 07期
关键词：
D O I：
10.1103/PhysRevD.67.077502
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We calculate the QCD moments of the pion structure function using Drell-Yan data on the quark distributions in the pion and a phenomenological model for the resonance region. The extracted higher twist corrections are found to be larger than those for the nucleon, contributing around 50% of the lowest moment at Q(2)=1 GeV2.
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页数：4
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