Gluons and the eta' nucleon coupling constant
High Energy Physics - Phenomenology
2009-10-31 v1
Abstract
We derive the effective chiral Lagrangian for low energy eta--nucleon and eta'--nucleon interactions and show that gluonic degrees of freedom, via the axial anomaly, induce a contact term in the pp -> pp eta and pp -> pp eta' reactions. We then discuss the consequences for the extraction of g_{eta'NN} from experimental data.
Cite
@article{arxiv.hep-ph/9907373,
title = {Gluons and the eta' nucleon coupling constant},
author = {Steven D. Bass},
journal= {arXiv preprint arXiv:hep-ph/9907373},
year = {2009}
}
Comments
10 pages, LaTeX