论文标题
Quark和Antiquark相关器和TMD的Parton模型描述
Parton model description of quark and antiquark correlators and TMDs
论文作者
论文摘要
模型研究在理解和阐明横向动量依赖的Parton分布函数（TMDS）的非扰动特性方面起着重要作用。 Parton模型通常是TMD属性首次探索的有用框架和起点，并且可以访问TMD的深度无弹性过程。基于对Parton模型概念的系统探索，我们调和了文献中的主张，即Parton模型中的Quark相关器中有2个独立的结构，而不是说有3个，并解释了导致不同结论的基本假设。我们还系统地探索了古夸公里的相关器，据我们所知，我们首次为所有T型领先和统一的Antiquark TMD提供了模型表达式。我们证明了该框架的一致性，这些框架可以在未来的研究中进行概括，以进行更复杂的TMD建模。
Model studies play an important role for the understanding and elucidation of the nonperturbative properties of transverse momentum dependent parton distribution functions (TMDs). The parton model is often a helpful framework and starting point for first explorations of TMD properties and the description of deep-inelastic processes in which TMDs can be accessed. Based on a systematic exploration of the parton model concept, we reconcile the claims in literature that there are 2 independent structures in the quark correlator in the parton model vs the claim that there are 3, and explain the underlying assumptions leading to the different conclusions. We also systematically explore the antiquark correlator and, to the best of our knowledge, for the first time derive the model expressions for all T-even leading and subleading antiquark TMDs. We demonstrate the consistency of the framework which can be generalized in future studies for more sophisticated TMD modelling.
