Deeply Virtual Compton Scattering: Facing Nonforward Distributions
高能物理 - 唯象学
2009-10-30 v1
摘要
Applications of perturbative QCD to deeply virtual Compton scattering process require a generalization of usual parton distributions for the case when long-distance information is accumulated in nonforward matrix elements of quark and gluon operators. We discuss two types of functions parametrizing such matrix elements: double distributions F(x,y;t) and nonforward distribution functions \cal F_\zeta (X;t) and also their relation to usual parton densities f(x).
引用
@article{arxiv.hep-ph/9706493,
title = {Deeply Virtual Compton Scattering: Facing Nonforward Distributions},
author = {Anatoly V. Radyushkin},
journal= {arXiv preprint arXiv:hep-ph/9706493},
year = {2009}
}
备注
4 pages, to be published in the Proceedings of the International Conference on Deep Inelastic Scattering, Chicago, April 1997, AIP