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Article Dans Une Revue Physical Review D Année : 2023

Extraction of Pion Transverse Momentum Distributions from Drell-Yan data

Matteo Cerutti
  • Fonction : Auteur
Lorenzo Rossi
  • Fonction : Auteur
Simone Venturini
  • Fonction : Auteur
Alessandro Bacchetta
  • Fonction : Auteur
Chiara Bissolotti
  • Fonction : Auteur
Marco Radici
  • Fonction : Auteur

Résumé

We map the distribution of unpolarized quarks inside a unpolarized pion as a function of the quark's transverse momentum, encoded in unpolarized Transverse Momentum Distributions (TMDs). We extract the pion TMDs from available data of unpolarized pion-nucleus Drell-Yan processes, where the cross section is differential in the lepton-pair transverse momentum. In the cross section, pion TMDs are convoluted with nucleon TMDs that we consistently take from our previous studies. We obtain a fairly good agreement with data. We present also predictions for pion-nucleus scattering that is being measured by the COMPASS Collaboration.

Dates et versions

hal-03822152 , version 1 (20-10-2022)

Identifiants

Citer

Matteo Cerutti, Lorenzo Rossi, Simone Venturini, Alessandro Bacchetta, Valerio Bertone, et al.. Extraction of Pion Transverse Momentum Distributions from Drell-Yan data. Physical Review D, 2023, 107 (1), pp.014014. ⟨10.1103/PhysRevD.107.014014⟩. ⟨hal-03822152⟩
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