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arXiv · hep-ph/0307369

Probing generalized parton distributions with electroproduction of lepton pairs off the nucleon

A. V. Belitsky·D. Müller
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Abstract

We evaluate the differential cross section for the electroproduction of lepton pairs off a polarized nucleon target in the generalized Bjorken region to leading power accuracy in hard momentum. We discuss the importance of this process for phenomenology of generalized parton distributions. A special attention is given to the sensitivity of physical observables, i.e., diverse asymmetries, to their dependence on scaling variables that allows to map directly the functional two-dimensional surface of generalized parton distributions.

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A. V. Belitsky, D. Müller. 2003-07-30. Probing generalized parton distributions with electroproduction of lepton pairs off the nucleon. https://doi.org/10.1103/physrevd.68.116005

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