论文标题

核子在协变part型模型中引导和转向扭曲时的结构

Structure of the nucleon at leading and subleading twist in the covariant parton model

论文作者

Bastami, S., Efremov, A. V., Schweitzer, P., Teryaev, O. V., Zavada, P.

论文摘要

协变量的Parton模型被概括为以系统的方式描述夸克相关器。先前的结果是针对T型扭转横向动量分布函数(TMD)复制的,并且首次在此模型中评估了所有T-Even Twist-3 TMD。我们采用了评估完全不整合的夸克相关器的方法,这使我们能够了解不同TMD之间的模型特定关系。我们验证方法的一致性,呈现数值结果,并与可用的TMD参数化进行比较。

The covariant parton model is generalized to describe quark correlators in a systematic way. Previous results are reproduced for the T-even leading-twist transverse momentum dependent parton distribution functions (TMDs), and for the first time all T-even twist-3 TMDs are evaluated in this model. We apply the approach to evaluate the fully unintegrated quark correlator which allows us to understand the model-specific relations between different TMDs. We verify the consistency of the approach, present numerical results and compare to available TMD parametrizations.

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