Flavor asymmetry of light quarks in the nucleon sea

被引：166
作者：
Garvey, GT [1 ]
Peng, JC [1 ]
机构：
[1] Los Alamos Natl Lab, Div Phys, Los Alamos, NM 87545 USA
来源：
PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, VOL 47, NO 1 | 2001年 / 47卷 / 01期
关键词：
D O I：
10.1016/S0146-6410(01)00155-7
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
A surprisingly large asymmetry between the up and down sea quark distributions in the nucleon has been observed in recent deep inelastic scattering and Drell-Yan experiments. This result strongly suggests that the mesonic degrees of freedom play an important role in the description of the parton distributions of the hadronic sea. In this article, we review the current status of our knowledge of the flavor structure of the nucleon sea. The implications of various theoretical models as well as possible future measurements axe also discussed.
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页码：203 / 243
页数：41
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