Further comment on pion electroproduction and the axial form factor
High Energy Physics - Phenomenology
2007-05-23 v1
Abstract
We show that a recent claim (H.Haberzettl, Phys. Rev. Lett. 85 (2000) 3576) that one cannot extract the nucleon weak axial form factor G_A (t) from charged pion threshold electroproduction is incorrect. Thus previous calculations remain valid and threshold charged pion electroproduction experiments can indeed be used to determine G_A (t), and they should certainly be pursued.
Keywords
Cite
@article{arxiv.hep-ph/0101062,
title = {Further comment on pion electroproduction and the axial form factor},
author = {V. Bernard and N. Kaiser and Ulf-G. Meißner},
journal= {arXiv preprint arXiv:hep-ph/0101062},
year = {2007}
}
Comments
2 pp, somewhat more detailed than the comment by P. Guichon, hep-ph/0012126