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An attempt to understand exclusive pi+ electroproduction

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arxiv 0906.0460 v2 pith:C7DM53UV submitted 2009-06-02 hep-ph

classification hep-ph
keywords approachelectroproductionexclusivedataexperimentalhandbagtwist-3asymmetries
verification ladder T0 review T1 audit T2 compute T3 formal
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Hard exclusive pi+ electroproduction is investigated within the handbag approach. The prominent role of the pion-pole contribution is demonstrated. It is also shown that the experimental data require a twist-3 effect which ensues from the helicity-flip generalized parton distribution H_T and the twist-3 pion wave function. The results calculated from this handbag approach are compared in detail with the experimental data on cross sections and spin asymmetries measured with a polarized target. It is also commented on consequences of this approach for exclusive \pi^0 and vector-meson electroproduction.

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Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

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