Two Photon Exchange for Exclusive Pion Electroproduction
Nuclear Theory
2013-09-25 v1 High Energy Physics - Phenomenology
Abstract
We perform detailed calculations of two-photon-exchange QED corrections to the cross section of pion electroproduction. The results are obtained with and without the soft-photon approximation; analytic expressions for the radiative corrections are derived. The relative importance of the two-photon correction is analyzed for the kinematics of several experiments at Jefferson Lab. A significant, over 20%, effect due to two-photon exchange is predicted for the backward angles of electron scattering at large transferred momenta.
Cite
@article{arxiv.1207.1767,
title = {Two Photon Exchange for Exclusive Pion Electroproduction},
author = {A. Afanasev and A. Aleksejevs and S. Barkanova},
journal= {arXiv preprint arXiv:1207.1767},
year = {2013}
}