Two-Photon Exchange Contribution to Proton Form Factors in Time-Like region
Nuclear Theory
2008-11-26 v1
Abstract
We estimate two-photon exchange contribution to the process . The two-photon exchange corrections to double spin polarization observables and form factors in the time-like region are calculated. The corrections are found to be small in magnitude, but with a strong angular dependence at fixed momentum transfer. These two features are the same as those in the space-like region. In the view of experiment, the double spin polarization observable deserves to be considered.
Cite
@article{arxiv.0806.2489,
title = {Two-Photon Exchange Contribution to Proton Form Factors in Time-Like region},
author = {D. Y. Chen and H. Q. Zhou and Y. B. Dong},
journal= {arXiv preprint arXiv:0806.2489},
year = {2008}
}
Comments
10 pages, 6 figures