Global analysis of proton elastic form factor data with two-photon exchange corrections
Nuclear Experiment
2008-11-26 v2 Nuclear Theory
Abstract
We use the world's data on elastic electron--proton scattering and calculations of two-photon exchange effects to extract corrected values of the proton's electric and magnetic form factors over the full Q^2 range of the existing data. Our analysis combines the corrected Rosenbluth cross section and polarization transfer data, and is the first extraction of G_Ep and G_Mp including explicit two-photon exchange corrections and their associated uncertainties. In addition, we examine the angular dependence of the corrected cross sections, and discuss the possible nonlinearities of the cross section as a function of epsilon.
Cite
@article{arxiv.0707.1861,
title = {Global analysis of proton elastic form factor data with two-photon exchange corrections},
author = {J. Arrington and W. Melnitchouk and J. A. Tjon},
journal= {arXiv preprint arXiv:0707.1861},
year = {2008}
}
Comments
13 pages, 3 figures, 4 tables, to be submitted to Phys. Rev. C