Generalized parton correlation functions for a spin-0 hadron
Abstract
The fully unintegrated, off-diagonal quark-quark correlator for a spin-0 hadron is parameterized in terms of so-called generalized parton correlation functions. Such objects are of relevance for the phenomenology of certain hard exclusive reactions. In particular, they can be considered as {\it mother distributions} of generalized parton distributions on the one hand and transverse momentum dependent parton distributions on the other. Therefore, our study provides new, model-independent insights into the recently proposed nontrivial relations between generalized and transverse momentum dependent parton distributions. As a by-product we obtain the first complete classification of generalized parton distributions beyond leading twist.
Keywords
Cite
@article{arxiv.0805.3165,
title = {Generalized parton correlation functions for a spin-0 hadron},
author = {S. Meissner and A. Metz and M. Schlegel and K. Goeke},
journal= {arXiv preprint arXiv:0805.3165},
year = {2009}
}
Comments
added references, final version