Deeply virtual Compton scattering on the nucleon: Study of the twist-3 effects
N. KivelInstitut für Theoretische Physik, Universität Regensburg, D-93040 Regensburg, GermanyMaxim V. PolyakovInstitut für Theoretische Physik II, Ruhr-Universität Bochum, D-44780 Bochum, GermanyMarc VanderhaeghenInstitut für Kernphysik, Johannes Gutenberg-Universität, D-55099 Mainz, Germany
2001en
ABI
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.
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