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Pré-Publication, Document De Travail Année : 2024

Flavor dependence of unpolarized quark Transverse Momentum Distributions from a global fit

Alessandro Bacchetta
  • Fonction : Auteur
Chiara Bissolotti
  • Fonction : Auteur
Giuseppe Bozzi
  • Fonction : Auteur
Matteo Cerutti
  • Fonction : Auteur
Filippo Delcarro
  • Fonction : Auteur
Marco Radici
  • Fonction : Auteur
Lorenzo Rossi
  • Fonction : Auteur
Andrea Signori
  • Fonction : Auteur

Résumé

We present an extraction of the unpolarized transverse-momentum-dependent parton distribution and fragmentation functions that takes into account possible differences between quark flavors and final-state hadrons. The extraction is based on experimental measurements from Drell-Yan processes and semi-inclusive deep-inelastic scattering, whose combination is essential to distinguish flavor differences. The analysis is carried out at N$^3$LL accuracy. The extracted flavor-dependent distributions give a very good description of the data ($\chi^2/N_{\rm dat} = 1.08$). The resulting uncertainties take fully into account also the uncertainties in the determination of the corresponding collinear distributions.

Dates et versions

hal-04600777 , version 1 (04-06-2024)

Identifiants

Citer

Alessandro Bacchetta, Valerio Bertone, Chiara Bissolotti, Giuseppe Bozzi, Matteo Cerutti, et al.. Flavor dependence of unpolarized quark Transverse Momentum Distributions from a global fit. 2024. ⟨hal-04600777⟩
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