Global parton distributions with nuclear and finite-Q^2 corrections
Abstract
We present three new sets of next-to-leading order parton distribution functions (PDFs) determined by global fits to a wide variety of data for hard scattering processes. The analysis includes target mass and higher twist corrections needed for the description of deep inelastic scattering data at large x and low Q^2, and nuclear corrections for deuterium targets. The PDF sets correspond to three different models for the nuclear effects, and provide a more realistic uncertainty range for the d quark PDF, in particular, compared with previous fits. We describe the PDF error sets for each choice of the nuclear corrections, and provide a user interface for utilizing the distributions.
Keywords
Cite
@article{arxiv.1212.1702,
title = {Global parton distributions with nuclear and finite-Q^2 corrections},
author = {J. F. Owens and A. Accardi and W. Melnitchouk},
journal= {arXiv preprint arXiv:1212.1702},
year = {2013}
}
Comments
25 pages, 7 figures, 2 tables. Extended discussion of PDF parametrizations and conventions