Gluon PDF constraints from the ratio of forward heavy quark production at the LHC at √(S)=7 and 13 TeV

2015/07/22 by Matteo Cacciari, Cacciari, Matteo, Michelangelo L. Mangano +3 · 2 citations
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.1507.06197

openalex publication_date 2015/07/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We discuss production of charm and bottom quarks at forward rapidity in pp collisions at the LHC, updating the QCD predictions for the run at √(S)=13 TeV. We show that, while the absolute rates suffer from large theoretical systematics, dominated by scale uncertainties, the increase relative to the rates precisely measured at 7 TeV can be predicted with an accuracy of a few percent, sufficient to highlight the sensitivity to the gluon distribution function.

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• Automated event generation for S-wave quarkonium and leptonium production in NRQCD and NRQED
• Low x gluons determined by open charm production

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