Two-pion-exchange contributions to the pp\to pp\pi^0 reaction
Nuclear Theory
2008-11-26 v2
Abstract
Our previous study of the near-threshold pp\to pp\pi^0 reaction based on a hybrid nuclear effective field theory is further elaborated by examining the momentum dependence of the relevant transition operators. We show that the two-pion exchange diagrams give much larger contributions than the one-pion exchange diagram, even though the former is of higher order in the Weinberg counting scheme. The relation between our results and an alternative counting scheme, the momentum counting scheme, is also discussed.
Keywords
Cite
@article{arxiv.0704.1342,
title = {Two-pion-exchange contributions to the pp\to pp\pi^0 reaction},
author = {Y. Kim and T. Sato and F. Myhrer and K. Kubodera},
journal= {arXiv preprint arXiv:0704.1342},
year = {2008}
}
Comments
11 pages, minor change, a few references are added