Single spin asymmetries in inclusive hadron production from SIDIS to hadronic collisions: universality and phenomenology
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In 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 figures
5 pages, 6 ps figures