Threshold pi^0 photo- and electro-production in a meson-exchange model
Nuclear Theory
2015-06-26 v1
Abstract
We show that, within a meson-exchange dynamical model describing well most of the existing pion electromagnetic production data up to the second resonance region, one is also able to obtain a good agreement with the pi^0 photo- and electroproduction data near threshold. In the case of pi^0 production, the effects of final state interaction in the threshold region are nearly saturated by single charge exchange rescattering. This indicates that in ChPT, it might be sufficient to carry out the calculation just up to one-loop diagrams for threshold neutral pion production.
Keywords
Cite
@article{arxiv.nucl-th/0312117,
title = {Threshold pi^0 photo- and electro-production in a meson-exchange model},
author = {S. N. Yang and Guan-Yeu Chen and S. S. Kamalov and D. Drechsel and L. Tiator},
journal= {arXiv preprint arXiv:nucl-th/0312117},
year = {2015}
}
Comments
6 pages LATEX including 1 tables and 4 figures, uses espcrc1.sty