Speaker
Description
We present the first global QCD analysis of the collinear and transverse momentum dependent parton distribution functions (PDFs and TMD PDFs) in the proton. Our study incorporates transverse momentum dependent Drell-Yan data from fixed-target and collider experiments, including precise high-energy Drell-Yan and
$Z$-boson production measurements from the Large Hadron Collider, sensitive to TMD PDFs, as well as data from inclusive deep inelastic scattering experiments, integrated Drell-Yan lepton-pair production, inclusive weak boson, $W+$\,charm, and jet production data sensitive to PDFs.
The analysis is performed at next-to-next-to-leading logarithmic (N2LL) accuracy for QCD resummation and next-to-leading order (NLO) accuracy in the strong coupling for collinear quantities. For the first time, we are able to study and quantify the impact of simultaneous inclusion of both data sets in the global fit. We find that this combined analysis leads to improvements in the knowledge of both TMDs and collinear PDFs.
