论文标题
低横向动量的Drell-Yan Spectra的风味依赖性B-膜
Flavor-dependent b-profiles from Drell-Yan spectra at low transverse momenta
论文作者
论文摘要
我们讨论了我们最近对共线PDF及其对确定横向动量依赖（TMD）分布的影响的影响，以及在低横向动量下的Drell-Yan（DY）生产测量的描述。使用QCD分解和横向坐标B空间中的演变，本研究首次考虑了依赖性的非扰动B- profiles。它说明了共线PDF的不确定性和非扰动TMD风味依赖性对于获得可靠的TMD确定至关重要。
We discuss our recent study of the impact of collinear PDFs and their uncertainties on the determination of transverse momentum dependent (TMD) distributions and the description of Drell-Yan (DY) production measurements at low transverse momenta. Using QCD factorization and evolution in transverse coordinate b space, this study takes into account for the first time flavor-dependent non-perturbative b-profiles. It illustrates that collinear PDF uncertainties and non-perturbative TMD flavor dependence are both essential to obtain reliable TMD determinations.
