Final state interactions and the transverse structure of the pion using non-perturbative eikonal methods
Abstract
In the factorized picture of semi-inclusive hadronic processes the naive time reversal-odd parton distributions exist by virtue of the gauge link which renders it color gauge invariant. The link characterizes the dynamical effect of initial/final-state interactions of the active parton due soft gluon exchanges with the target remnant. Though these interactions are non-perturbative, studies of final-state interaction have been approximated by perturbative one-gluon approximation in Abelian models. We include higher-order contributions by applying non-perturbative eikonal methods incorporating color degrees of freedom in a calculation of the Boer-Mulders function of the pion. Using this framework we explore under what conditions the Boer Mulders function can be described in terms of factorization of final state interactions and a spatial distribution in impact parameter space.
Cite
@article{arxiv.0911.1964,
title = {Final state interactions and the transverse structure of the pion using non-perturbative eikonal methods},
author = {Leonard Gamberg and Marc Schlegel},
journal= {arXiv preprint arXiv:0911.1964},
year = {2014}
}
Comments
To appear in Phys.Lett.B, 9 pages, 5 figures, added refs. and discussion