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arXiv · 1709.01405

GPDs from charged current meson production in $ep$ experiments

Marat Siddikov·Ivan Schmidt
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Abstract

We suggest that generalized parton distributions can be probed in charged current meson production process, $ep\to\nu_{e}\pi^{-}p$. In contrast to pion photoproduction, this process is sensitive to the unpolarized GPDs $H,\,E$, and for this reason has a very small contamination by higher twist and Bethe-Heitler type contributions. Since all produced hadrons are charged, we expect that the kinematics of this process could be easily reconstructed. We estimated the cross-sections in the kinematics of upgraded 12 GeV Jefferson Laboratory experiments and found that thanks to large luminosity the process can be measured with reasonable statistics.

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Marat Siddikov, Ivan Schmidt. 2017-09-03. GPDs from charged current meson production in $ep$ experiments. https://doi.org/10.1103/physrevd.96.096006

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