Generalized parton distributions with helicity flip
High Energy Physics - Phenomenology
2009-01-07 v1
Abstract
We show that for both quarks and gluons there are eight generalized parton distributions in the proton: four which conserve parton helicity and four which do not. We explain why time reversal invariance does not reduce this number from eight to six, as previously assumed in the literature.
Cite
@article{arxiv.hep-ph/0101335,
title = {Generalized parton distributions with helicity flip},
author = {M. Diehl},
journal= {arXiv preprint arXiv:hep-ph/0101335},
year = {2009}
}
Comments
20 pages, 2 figures