Nuclear parton distribution functions and their effects on sin^2 theta_W anomaly

Details Nuclear parton distribution functions and their effects on sin^2 theta_W anomaly Nuclear parton distribution functions and their effects on sin^2 theta_W anomaly

2004-08-03

arxiv.org/abs/hep-ph/0408023v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, LaTeX, 5 eps files, dis04.cls, to be published in the proceedings of the 12th International Workshop on Deep Inelasti

Scientific paper

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.

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