Azimuthal Asymmetries in Inclusive Single Pion Electroproduction

Abstract

The leading and sub-leading order results for pion electroproduction in polarized and unpolarized semi-inclusive deep-inelastic scattering, are considered putting emphasis on transverse momentum dependent effects appearing in azimuthal asymmetries. In particular the spin-dependent (single, double) and spin-independent asymmetries of the distributions in the azimuthal angle of the pion related to the lepton scattering plane are discussed.

Comments: 10 pages, 7 figures, LaTeX using wrapfig.sty; invited talk given at the IX workshop on high energy spin physics, August 2-7, 2001, JINR Dubna, Russia