Paper
Weighted azimuthal asymmetries in a diquark spectator model
Authors
Alessandro Bacchetta, Marco Radici, Francesco Conti, Marco Guagnelli
Abstract
We analytically calculate weighted azimuthal asymmetries in semi-inclusive lepton-nucleon deep-inelastic scattering and Drell-Yan processes, using transverse-momentum-dependent partonic densities obtained in a diquark spectator model. We compare the asymmetries with available preliminary experimental data, in particular for the Collins and the Sivers effect. We make predictions for other cases of interest in running and planned experiments.