Linking generalized parton distributions to constituent quark models
High Energy Physics - Phenomenology
2009-11-07 v2 Nuclear Theory
Abstract
The link between the nucleon generalized parton distributions and the non-diagonal one-body density matrix in momentum space is studied. Attention is focussed on the region where quark generalized parton distributions (GPD's) describe emission and reabsorption of a single active quark by the target nucleon. The correct covariant connection with wave functions used in any constituent quark model is established. Results obtained with different constituent quark models are presented for the unpolarized quark GPD's.
Cite
@article{arxiv.hep-ph/0207340,
title = {Linking generalized parton distributions to constituent quark models},
author = {S. Boffi and B. Pasquini and M. Traini},
journal= {arXiv preprint arXiv:hep-ph/0207340},
year = {2009}
}
Comments
2 new figures included and references added, conclusions unchanged. Version to appear in Nucl. Phys. B