Speaker
Giuseppe Bozzi
(University and INFN, Cagliari)
Description
In this talk 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 N3LL logarithmic accuracy in the resummation of qT-logarithms and features flexible non-perturbative functions, which allow to reach a very good agreement with the experimental data. In particular, we address the tension between the low-energy SIDIS data and the theory predictions, and explore the impact of the precise LHC data on the fit results.
Primary authors
Giuseppe Bozzi
(University and INFN, Cagliari)
Alessandro Bacchetta
(University of Pavia and INFN)
Valerio Bertone
(NIKHEF)
Chiara Bissolotti
(Università di Pavia and INFN)
Marco Radici
(INFN - Pavia)
Andrea Signori
(University of Turin and INFN)
Cerutti Matteo
(University and INFN, Pavia)
