Abstract Experimental measurements of Drell-Yan (DY) vector-boson production are available from the Large Hadron Collider (LHC) and from lower-energy collider and fixed-target experiments. In the region of low vector-boson transverse momenta q T , which is important for the extraction of the W-boson mass at the LHC, QCD contributions from non-perturbative Sudakov form factors and intrinsic transverse momentum distributions become relevant. We study the potential for determining such contributions from fits to LHC and lower-energy experimental data, using the framework of low- q T factorization for DY differential cross sections in terms of transverse momentum dependent (TMD) distribution functions. We investigate correlations between different sources of TMD non-perturbative effects, and correlations with collinear parton distributions. We stress the relevance of accurate DY measurements at low masses and with fine binning in transverse momentum for improved determinations of long-distance contributions to Sudakov evolution processes and TMDs.

中文翻译：

---

强子碰撞中矢量-玻色子横向动量谱的非微扰贡献

摘要 Drell-Yan (DY) 矢量玻色子产生的实验测量可从大型强子对撞机 (LHC) 和低能量对撞机和固定目标实验中获得。在低矢量玻色子横向动量 q T 区域，这对于在 LHC 处提取 W 玻色子质量很重要，来自非微扰 Sudakov 形状因子和固有横向动量分布的 QCD 贡献变得相关。我们根据横向动量相关 (TMD) 分布函数，使用 DY 微分横截面的低 q T 分解框架，研究从拟合 LHC 和低能量实验数据确定此类贡献的潜力。我们研究了不同来源的 TMD 非微扰效应之间的相关性，以及与共线部分分布的相关性。