2020/05/31 by S. Bastami, L. Gamberg, B. Parsamyan +3
Physics and Astronomy · #Drell–Yan process #Hadron #High-Energy Particle Collisions Research #Logarithm #Nucleon #Particle physics theoretical and experimental studies #Parton #Pion #Quantum Chromodynamics and Particle Interactions #Quark #Structure function #Twist #hep-ex #hep-ph #nucl-th
paper · pdf · doi:10.1007/jhep02(2021)166
published as JHEP 02, (2021), 166 · The paper is restructured with new discussions and results, TMD evolution is implemented at Next-to-Leading Logarithmic accuracy for all asymmetries. 27 pages and 10 figures
openalex created_date 2020/06/05 · openalex publication_date 2021/02/01 · arxiv created 2021/02/22 · arxiv updated 2021/02/24 · openalex updated_date 2026/08/06
A bstract The Drell-Yan process provides important information on the internal struc- ture of hadrons including transverse momentum dependent parton distribution functions (TMDs). In this work we present calculations for all leading twist structure functions de- scribing the pion induced Drell-Yan process. The non-perturbative input for the TMDs is taken from the light-front constituent quark model, the spectator model, and available parametrizations of TMDs extracted from the experimental data. TMD evolution is im- plemented at Next-to-Leading Logarithmic precision for the first time for all asymmetries. Our results are compatible with the first experimental information, help to interpret the data from ongoing experiments, and will allow one to quantitatively assess the models in future when more precise data will become available.