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

M. Hirai·S. Kumano·T. -H. Nagai
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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.

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M. Hirai, S. Kumano, T. -H. Nagai. 2004-08-03. Nuclear parton distribution functions and their effects on sin^2 theta_W anomaly. https://arxiv.org/abs/hep-ph/0408023

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