Renormalons in exclusive meson electroproduction

Details Renormalons in exclusive meson electroproduction Renormalons in exclusive meson electroproduction

2003-07-21

arxiv.org/abs/hep-ph/0307256v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, Aipproc, 2 figures

Scientific paper

10.1063/1.1664310

We discuss the possibility of measuring generalized parton distributions in exclusive electroproduction of mesons off the nucleon and estimate the uncertainty from perturbatively induced higher-twist corrections. We find that, while the magnitude of the cross section changes significantly taking into account twist-four contributions modeled via renormalons, the transverse spin asymmetry is weakly sensitive to them and displays the precocious scaling.

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