Phenomenology of SIDIS unpolarized cross sections and azimuthal asymmetries

Abstract

I review the phenomenology of unpolarized cross sections and azimuthal asymmetries in semi-inclusive deeply inelastic scattering (SIDIS). The general theoretical framework is presented and the validity of the Gaussian model is discussed. A brief account of the existing analyses is provided.

Comments: 12 pages, 5 figures, invited talk at "Transversity 2011", Veli Losinj, Croatia