Speaker
Description
Building maps of the internal partonic structure of nucleons is a crucial step towards understanding the interactions between quarks and gluons and the phenomenon of confinement.
In this talk I will present an extraction of unpolarized transverse-momentum-dependent parton distribution and fragmentation functions, based on more than two thousand data points from several experiments for two different processes: Semi-Inclusive Deep-Inelastic Scattering and Drell-Yan lepton-pair production.
The baseline analysis is performed using the Monte Carlo replica method and resumming large logarithms at N$^3$LL accuracy: the resulting description of the data is very good ($\chi^2/N_{data}$=1.06).
The availability of TMD analyses at increasing precision will be essential in guiding detector design and feasibility studies for the future Electron Ion Collider, and will also have a strong impact on precision measurements of observables particularly sensitive to the hadron structure, such as $W$mass measurements at hadron colliders.
