Determination of Strange Sea Quark Distributions from Fixed-target and Collider Data

Abstract

We present an improved determination of the strange sea distribution in the nucleon with constraints coming from the recent charm production data in neutrino-nucleon deep-inelastic scattering by the NOMAD and CHORUS experiments and from charged current inclusive deep-inelastic scattering at HERA. We demonstrate that the results are consistent with the data from the ATLAS and the CMS experiments on the associated production of $W^{\pm }$-bosons with $c$-quarks. We also discuss issues related to the recent strange sea determination by the ATLAS experiment using LHC collider data.

23 pages, 14 figures

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• Strange quark asymmetry in the proton in chiral effective theory
• Study of W and Z Boson Production in Proton-Lead Collisions at the LHC with KP Nuclear Parton Distributions
• Strong Interaction Physics at the Luminosity Frontier with 22 GeV Electrons at Jefferson Lab
• Charm Production and QCD Analysis at HERA and LHC
• Impact of Lattice Strangeness Asymmetry Data in the CTEQ-TEA Global Analysis
• W+charm production with massive c quarks in PowHel
• Machine learning of log-likelihood functions in global analysis of parton distributions
• Probing Free Nucleons with (Anti)neutrinos
• Higher Order Heavy Quark Corrections to Deep-Inelastic Scattering
• Proton structure at the LHC
• Nucleon PDF separation with the collider and fixed-target data
• Improved determination of strange distribution function from the global analysis using BHPS model