The axial strange form factor FAs of the nucleon is assumed to be dominated at low momentum transfer by the isoscalar axial vector mesons f1(1285) and f1(1420). The importance of the a0πN-triangular vertex correction is demonstrated.
@article{arxiv.hep-ph/9409293,
title = {$f_1$ Vector Meson Dominance Model for the Strange Axial Form Factor of the Nucleon},
author = {M. Kirchbach and H. Arenhoevel},
journal= {arXiv preprint arXiv:hep-ph/9409293},
year = {2009}
}