Jul 6 – 13, 2022
Bologna, Italy
Europe/Rome timezone

Global extraction of unpolarized quark TMDs at N3LL

Jul 9, 2022, 9:00 AM
Room 1 (Europa Auditorium)

Room 1 (Europa Auditorium)

Parallel Talk Strong interactions and Hadron Physics Strong interactions and Hadron Physics


Giuseppe Bozzi (University of Cagliari and INFN, Cagliari)


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.

In-person participation Yes

Primary authors

Alessandro Bacchetta (Istituto Nazionale di Fisica Nucleare) Giuseppe Bozzi (University of Cagliari and INFN, Cagliari) Andrea Signori (Istituto Nazionale di Fisica Nucleare) Chiara Bissolotti (UChicago Argonne, Argonne National Laboratory) Marco Radici (Istituto Nazionale di Fisica Nucleare) Matteo Cerutti (Istituto Nazionale di Fisica Nucleare) Valerio Bertone (CEA Paris-Sclay)

Presentation materials