Parton Distributions in the Impact Parameter Space
High Energy Physics - Phenomenology
2009-08-24 v1
Abstract
Parton distributions in impact parameter space, which are obtained by Fourier transforming GPDs, exhibit a significant deviation from axial symmetry when the target and/or quark is transversely polarized. In combination with the final state interactions, this transverse deformation provides a natural mechanism for naive-T odd transverse single-spin asymmetries in semi-inclusive DIS. The deformation can also be related to the transverse force acting on the active quark in polarized DIS at higher twist.
Keywords
Cite
@article{arxiv.0902.0163,
title = {Parton Distributions in the Impact Parameter Space},
author = {Matthias Burkardt},
journal= {arXiv preprint arXiv:0902.0163},
year = {2009}
}
Comments
9 pages, Proceedings Spin 2008