Proton structure functions and quark orbital motion
High Energy Physics - Phenomenology
2007-05-23 v2
Abstract
Covariant version of the quark-parton model is studied. Dependence of the structure functions on the 3D quark intrinsic motion is discussed. The important role of the quark orbital momentum, which is a particular case of intrinsic motion, appears as a direct consequence of the covariant description. Effect of orbital motion is substantial especially for polarized structure functions. At the same time, the procedure for obtaining the quark momentum distribution from the structure functions is suggested.
Cite
@article{arxiv.hep-ph/0609027,
title = {Proton structure functions and quark orbital motion},
author = {Petr Zavada},
journal= {arXiv preprint arXiv:hep-ph/0609027},
year = {2007}
}
Comments
13 pages, 2 figures. In 2nd version some points are explained in more detail and two references are added