论文标题
带有亲核和偏振核的DRELL-YAN过程
The Drell-Yan process with pions and polarized nucleons
论文作者
论文摘要
DRELL-YAN过程提供了有关Hadron内部结构（包括横向动量依赖的Parton分布功能（TMD））的重要信息。在这项工作中，我们介绍了描述PION诱导的DREL-YAN过程的所有领先扭曲结构函数的计算。 TMDS的非扰动输入取自从实验数据中提取的轻型组成夸克模型，观众模型以及TMD的可用参数化。对于所有不对称，首次以近代领先的对数精度实现TMD演变。我们的结果与第一个实验信息兼容，有助于解释正在进行的实验中的数据，并将允许人们在将来进行定量评估模型。
The Drell-Yan process provides important information on the internal structure of hadrons including transverse momentum dependent parton distribution functions (TMDs). In this work we present calculations for all leading twist structure functions describing the pion induced Drell-Yan process. The non-perturbative input for the TMDs is taken from the light-front constituent quark model, the spectator model, and available parametrizations of TMDs extracted from the experimental data. TMD evolution is implemented at Next-to-Leading Logarithmic precision for the first time for all asymmetries. Our results are compatible with the first experimental information, help to interpret the data from ongoing experiments, and will allow one to quantitatively assess the models in future when more precise data will become available.
