Speaker
Matteo Cerutti
(Università di Pavia)
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 (next-to)$^3$ leading 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.
| Submitted on behalf of a Collaboration? | Yes |
|---|
Authors
Alessandro Bacchetta
Andrea Signori
(University of Pavia and Jefferson Lab)
Chiara Bissolotti
Giuseppe Bozzi
(University of Cagliari and INFN, Cagliari)
Marco Radici
Matteo Cerutti
(Università di Pavia)
Valerio Bertone
(C.E.A. Paris-Saclay)
