Nuclear parton distribution functions and their effects on sin^2 theta_W anomaly
High Energy Physics - Phenomenology
2007-05-23 v1 High Energy Physics - Experiment
Nuclear Experiment
Nuclear Theory
Abstract
Nuclear parton distribution functions (NPDFs) are investigated by analyzing the data on structure functions F_2^A and Drell-Yan cross sections sigma_{DY}^{pA}. An important point of this analysis is to show uncertainties of the NPDFs by the Hessian method. The analysis indicates that the uncertainties are large for antiquark distributions at x>0.2 and gluon distributions in the whole x region. We also discuss a nuclear effect on the NuTeV sin^2 theta_W anomaly as an application.
Keywords
Cite
@article{arxiv.hep-ph/0408023,
title = {Nuclear parton distribution functions and their effects on sin^2 theta_W anomaly},
author = {M. Hirai and S. Kumano and T. -H. Nagai},
journal= {arXiv preprint arXiv:hep-ph/0408023},
year = {2007}
}
Comments
4 pages, LaTeX, 5 eps files, dis04.cls, to be published in the proceedings of the 12th International Workshop on Deep Inelastic Scattering (DIS04), Strbske-Pleso, Slovakia, April 14-18, 2004. Nuclear PDF library is available at http://hs.phys.saga-u.ac.jp/nuclp.html