广义部分子分布，寻找夸克轨道动量
Generalized parton distributions, the hunt for quark orbital momenta
摘要：
广义部分子分布（GPD）是描述核子部分子结构的合适框架。它们描述了核子内部夸克和胶子的动力学，因此包含了核子自旋的信息。回顾了当前有关GPD的实验知识，重点是E^q（Q^2，x，xi，t）的确定，E^q（Q^2，x，xi，t）是已知和约束最少的GPD，在核子自旋之谜中特别重要。还讨论了该实验计划的前景。
英文摘要：
The Generalized Parton Distributions (GPDs) are the appropriate framework for a universal description of the partonic structure of the nucleon. They characterize the dynamics of quarks and gluons inside the nucleon and consequently contain information about the spin of the nucleon. The current experimental knowledge about GPDs is reviewed with the emphasis on the determination of E^q(Q^2,x,xi,t), the least known and constrained GPD, of particular importance in the nucleon spin puzzle. The perspectives of this experimental program are also addressed.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
