A CT18 global PDF fit at the leading order in QCD

Abstract

In this paper, we present a CT18 PDFs fitted with Leading-Order QCD perturbation theory. The CT18 LO PDFs is obtained within the general CT18 framework, along with two additional treatments being imposed to improve the quality of the fit. We take the $W$-boson charge asymmetry and inclusive single-top production at LHC as examples to illustrate the implication of the CT18 LO PDFs.

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• Dissociative associated $J/\psi$ and dimuon production in Ap ultraperipheral collisions via double parton scattering
• QCD analysis of valence structure functions using deep inelastic lepton-nucleon scattering