THE PROTON SPIN PUZZLE: WHERE ARE WE TODAY?

被引：16
|
作者：
Bass, Steven D. [1 ]
机构：
[1] Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria
来源：
MODERN PHYSICS LETTERS A | 2009年 / 24卷 / 14期
基金：
奥地利科学基金会;
关键词：
Proton spin puzzle; SMALL X-BEHAVIOR; PARTON DISTRIBUTIONS; PERTURBATIVE EVOLUTION; SUM-RULE; NUCLEON; SCATTERING; G1; ASYMMETRY; PHYSICS; PHOTOPRODUCTION;
D O I：
10.1142/S0217732309031041
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The proton spin puzzle has challenged our understanding of QCD for the last 20 years. New measurements of polarized glue, valence and sea quark polarization, including strange quark polarization, are available. What is new and exciting in the data, and what might this tell us about the structure of the proton? The proton spin puzzle seems to be telling us about the interplay of valence quarks with the complex vacuum structure of QCD.
引用
收藏
页码：1087 / 1101
页数：15
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