Chiral corrections to the Kroll-Ruderman theorem
High Energy Physics - Phenomenology
2009-10-28 v1 Nuclear Theory
Abstract
We calculate the one--loop corrections to the Kroll--Ruderman low--energy theorems for charged pion photoproduction in the framework of heavy baryon chiral perturbation theory. We predict the threshold S--wave multipole to be and , respectively, for a fixed pion--nucleon coupling constant, . A comparison to the existing data is also given.
Keywords
Cite
@article{arxiv.hep-ph/9603278,
title = {Chiral corrections to the Kroll-Ruderman theorem},
author = {V. Bernard and N. Kaiser and Ulf-G. Meißner},
journal= {arXiv preprint arXiv:hep-ph/9603278},
year = {2009}
}
Comments
7 pp, LaTeX