2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/191897In a perturbative QCD approach, with inclusion of spin and transverse momentum effects, experimental data on azimuthal asymmetries observed in polarized semi-inclusive deeply inelastic scattering and e+ e- annihilations can be used to determine the Sivers, transversity and Collins soft functions. By using these functions, within the same scheme, we predict p(transv. polarized) p -> h + X single spin asymmetries in remarkable agreement with RHIC experimental data.5 pages, 6 ps figuresHigh Energy Physics - Phenomenologytext