DVCS on the nucleon : study of the twist-3 effects
arXiv:hep-ph/0012136 · doi:10.1103/PhysRevD.63.114014
Abstract
We estimate the size of the twist-3 effects on deeply virtual Compton scattering (DVCS) observables, in the Wandzura-Wilczek approximation. We present results in the valence region for the DVCS cross sections, charge asymmetries and single spin asymmetries, to twist-3 accuracy.
20 pages, 6 figures