Unpolarized Transverse Momentum Distributions from a global fit of Drell-Yan and Semi-Inclusive Deep-Inelastic Scattering data

Autor:	Bacchetta, Alessandro, Bertone, Valerio, Bissolotti, Chiara, Bozzi, Giuseppe, Cerutti, Matteo, Piacenza, Fulvio, Radici, Marco, Signori, Andrea
Rok vydání:	2022
Předmět:	High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Theory
Druh dokumentu:	Working Paper
DOI:	10.1007/JHEP10(2022)127
Popis:	We present an extraction of unpolarized transverse-momentum-dependent parton distribution and fragmentation functions based on more than two thousands data points from several experiments for two different processes: semi-inclusive deep-inelastic scattering and Drell-Yan production of lepton pairs. The baseline analysis is performed with a Monte Carlo replica method resumming large logarithms at N3LL accuracy. The resulting description of the data is very good ($\chi^2/N_{\rm dat} = 1.06$). For semi-inclusive deep-inelastic scattering, predictions for multiplicities are normalized by factors that cure the discrepancy with data introduced by higher-order perturbative corrections. Comment: Version accepted for publication. Results unchanged, only some clarifications have been added
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2206.07598 Zobrazit plný text záznamu View this record from Arxiv