Renormalons in exclusive meson electroproduction
High Energy Physics - Phenomenology
2009-11-10 v1
Abstract
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.
Cite
@article{arxiv.hep-ph/0307256,
title = {Renormalons in exclusive meson electroproduction},
author = {A. V. Belitsky},
journal= {arXiv preprint arXiv:hep-ph/0307256},
year = {2009}
}
Comments
5 pages, Aipproc, 2 figures