标题： 自旋相关的深度非弹性散射简介 显示英文标题

标题： An Introduction to Spin Dependent Deep Inelastic Scattering

摘要： 这些讲座的主要重点是那些可以从QCD通过量子场论直接推导出的深度非弹性散射方面，而无需诉诸于经验模型。 重点在于自旋相关的散射，但同时也讨论了自旋平均散射的理论。 详细分析了自旋1/2靶的情况，并在最后简要讨论了更高自旋靶的情况。 介绍了 Callan-Gross关系、纵向结构函数 $F_L$，以及 Bjorken和Ellis-Jaffe求和规则的QCD推导。 我还讨论了 Wilczek-Wandzura对 $g_2$的贡献，以及为什么Gottfried求和规则在QCD中不成立。 显示英文摘要

摘要： The main focus of these lectures is on those aspects of deep inelastic scattering that can be derived directly from QCD using quantum field theory, without recourse to phenomenological models. The emphasis is on spin dependent scattering, but the theory of spin averaged scattering is also discussed. A detailed analysis is given for the case of spin 1/2 targets, with a brief discussion of higher spin targets at the end. The QCD derivation of the Callan-Gross relation, the longitudinal structure function $F_L$, and the Bjorken and Ellis-Jaffe sum rules is presented. I also discuss the Wilczek-Wandzura contribution to $g_2$, and why the Gottfried sum rule does not hold in QCD.