Proton spin structure in the rest frame
High Energy Physics - Phenomenology
2009-10-30 v2
Abstract
It is shown that the quark-parton model in the standard infinite momentum approach overestimate the proton spin structure function in comparison with the approach taking consistently into account the internal motion of quarks described by a spherical phase space in the proton rest frame. Particularly, it is shown the first moment of the spin structure function in the latter approach, assuming only the valence quarks contribution to the proton spin, does not contradict to the experimental data.
Keywords
Cite
@article{arxiv.hep-ph/9704320,
title = {Proton spin structure in the rest frame},
author = {P. Zavada},
journal= {arXiv preprint arXiv:hep-ph/9704320},
year = {2009}
}
Comments
10 pages, Tex, 1 PostScript figure. In the revised version some references are added and minor corrections are done. This version will appear in Phys. Rev. D