Compatibility of global NPDF analyses of neutrino DIS and charged-lepton DIS data

TL;DR

This paper investigates the compatibility of neutrino and charged-lepton DIS data in global PDF analyses, emphasizing the importance of understanding nuclear effects to accurately determine parton distributions.

Contribution

It compares nuclear effects in neutrino and charged-lepton DIS data using nuclear PDFs from global analyses, highlighting their compatibility for consistent PDF extraction.

Findings

Nuclear effects are consistent across neutrino and charged-lepton DIS data.

Understanding nuclear effects improves the accuracy of proton PDF determinations.

The study supports combined analyses of different DIS data types.

Abstract

The neutrino deep inelastic scattering (DIS) data is very interesting for global analyses of proton and nuclear parton distribution functions (PDFs) since they provide crucial information on the strange quark distribution in the proton and allow for a better flavor decompositon of the PDFs. In order to use neutrino DIS data in a global analysis of proton PDFs nuclear effects need to be understood. We study these effects with the help of nuclear PDFs extracted from global analyses of charged-lepton DIS, Drell-Yan and neutrino DIS data at next-to-leading order in QCD.