Speaker
Matteo Cerutti
(University of Pavia)
Description
We present the most recent extraction of unpolarized transverse-momentum-dependent (TMD) parton distribution functions (PDFs) and TMD fragmentation functions (FFs) from global data sets of Semi-Inclusive Deep-Inelastic Scattering (SIDIS), Drell-Yan and Z boson production. The fit is performed at the N$^3$LL logarithmic accuracy in the resummation of q$_T$-logarithms and features flexible non-perturbative functions, which allow to reach a very good agreement between theory and the experimental data. In particular, we address the tension between the low-energy SIDIS data and the theory predictions.
Author
Matteo Cerutti
(University of Pavia)
Co-authors
Alessandro Bacchetta
(University of Pavia and INFN Pavia)
Valerio Bertone
(CEA Paris-Saclay)
Chiara Bissolotti
(University of Pavia and INFN)
Giuseppe Bozzi
Marco Radici
(University of Pavia)
Andrea Signori
(University of Pavia and Jefferson Lab)
