A model for the parton distributions in hadrons
High Energy Physics - Phenomenology
2014-11-17 v2
Abstract
A simple model is presented for the parton distributions in hadrons. The parton momenta in the hadron rest frame are derived from a spherically symmetric, Gaussian, distribution having a width motivated by the Heisenberg uncertainty relation applied to the hadron size. Valence quarks and gluons originate from the `bare' hadron, while sea partons arise mainly from pions in hadronic fluctuations. Starting from a low Q^2 scale, the distributions are evolved with next-to-leading order DGLAP and give the proton structure function F2(x,Q^2) in good agreement with deep inelastic scattering data.
Cite
@article{arxiv.hep-ph/9803496,
title = {A model for the parton distributions in hadrons},
author = {A. Edin and G. Ingelman},
journal= {arXiv preprint arXiv:hep-ph/9803496},
year = {2014}
}
Comments
12 pages, Latex, 5 figures. Added discussion on the applicability of the model at small Q^2. Figure 3 modified to show smaller Q^2