Speaker
Gustavo Barbosa Bopsin
(Universidade Estadual Paulista / Ecole Polytechnique)
Description
In this work, we compute the pion parton distribution function (PDF) and its elementary and full fragmentation functions (FFs) using the Curci-Ferrari (CF) model. This model enables the exploration of nonperturbative Quantum Chromodynamics (QCD) effects by introducing a gluon-mass scale within the Landau gauge QCD Lagrangian. The resulting pion PDF and FFs computed with the CF quark propagator and pion Bethe-Salpeter amplitude are in good qualitative and quantitative agreement with those obtained using the Qin-Chang model, a benchmark approach to nonperturbative QCD. These findings support the broader applicability of the CF model in hadron phenomenology.
Author
Gustavo Barbosa Bopsin
(Universidade Estadual Paulista / Ecole Polytechnique)