Precision measurements of Drell-Yan processes, including on-shell and off-shell W- and Z-boson production, offer key input to improve the understanding of QCD and the accuracy of PDFs. In addition, Drell-Yan measurements are instrumental for precision measurements of fundamental electroweak parameters, such as the W boson mass measurement. This talk summarizes recent results from ATLAS on this topic.
Emilien Chapon (Mon,) studied this question.