The Drell-Yan process with pions and polarized nucleons

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 de- scribing pion induced process. non-perturbative input TMDs is taken from light-front constituent quark model, spectator and available parametrizations extracted experimental data. TMD evolution im- plemented at Next-to-Leading Logarithmic precision first time asymmetries. Our results are compatible with information, help to interpret data ongoing experiments, will allow one quantitatively assess models in future when more precise become available.