标题： TMD因子化方法中的Drell-Yan反应角结构 显示英文标题

标题： Angular structure of Drell-Yan reaction in the TMD factorization approach

摘要： 我们研究了Drell-Yan过程中角度分布，采用了一种包含动力学幂校正的扩展横动量依赖(TMD)因子化框架。 这种方法允许描述以前认为是幂次抑制的可观测量。 结果与实验数据有很好的一致性，并提供了LHC基础上关于Boer-Mulders函数的第一个指示，突显了TMD现象学中幂次校正的价值。 显示英文摘要

摘要： We study angular distributions in the Drell-Yan process using an extended transverse momentum dependent (TMD) factorization framework that includes kinematic power corrections. This approach allows the description of observables previously considered power-suppressed. The results show good agreement with experimental data and provide the first LHC-based indication of the Boer-Mulders function, highlighting the value of power corrections in TMD phenomenology.