Nuclear PDF for neutrino and charged lepton data

Abstract

Neutrino Deep Inelastic Scattering (DIS) on nuclei is an essential process to constrain the strange quark parton distribution functions (PDF) in the proton. The critical component on the way to using the neutrino DIS data in a proton PDF analysis is understanding the nuclear effects in parton distribution functions. We parametrize these effects by nuclear parton distribution functions (NPDF). Here we compare results from two analysis of NPDF both done at next‐to‐leading order in QCD. The first uses neutral current charged‐lepton (l±A) Deeply Inelastic Scattering (DIS) and Drell‐Yan data for several nuclear targets and the second uses neutrino‐nucleon DIS data. We compare the nuclear corrections factors (F2Fe/F2D) for the charged‐lepton data with other results from the literature. In particular, we compare and contrast fits based upon the charged‐lepton DIS data with those using neutrino‐nucleon DIS data.