Symmetry breaking effect on determination of polarized and unpolarized parton distributions
High Energy Physics - Phenomenology
2015-06-11 v1
Abstract
We perform a new extraction for unpolarized and polarized parton distribution functions considering a flavor decompositions for sea quarks and applying very recent deep inelastic scattering (DIS) and semi inclusive deep inelastic scattering (SIDIS) data in the fixed flavor number scheme (FFNS) framework. In the new symmetry breaking scenario the light quark and antiquark densities are extracted separately and new parametrization forms are determined for them. The heavy flavors contribution, including charm and bottom quarks, are also taken to be account for unpolarized distributions.
Keywords
Cite
@article{arxiv.1208.5234,
title = {Symmetry breaking effect on determination of polarized and unpolarized parton distributions},
author = {F. Arbabifar and Ali. N. Khorramian and H. Khanpour and S. Atashbar Tehrani},
journal= {arXiv preprint arXiv:1208.5234},
year = {2015}
}
Comments
Talk presented at 16th International QCD Conference (QCD12), Montpellier, France, July 2- 7, 2012. Submitted to Nuc. Phys. (Proc. Suppl.), 4 pages, 4 figures