Study of coherent J/ψ production in lead-lead collisions at √sNN = 5 TeV

LHCb collaboration

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Abstract

Coherent production of J/ψ mesons is studied in ultraperipheral lead-lead collisions at a nucleon-nucleon centre-of-mass energy of 5 TeV, using a data sample collected by the LHCb experiment corresponding to an integrated luminosity of about 10 μb −1. The J/ψ mesons are reconstructed in the dimuon final state and are required to have transverse momentum below 1 GeV. The cross-section within the rapidity range of 2.0 < y < 4.5 is measured to be 4.45 ± 0.24 ± 0.18 ± 0.58 mb, where the first uncertainty is statistical, the second systematic and the third originates from the luminosity determination. The cross-section is also measured in J/ψ rapidity intervals. The results are compared to predictions from phenomenological models. [Figure not available: see fulltext.].

Original languageEnglish
Article number117
Number of pages19
JournalJournal of High Energy Physics
Volume2022
Issue number7
DOIs
Publication statusPublished - 19 Jul 2022

Keywords

  • Heavy Ion Experiments
  • Particle and Resonance Production
  • QCD
  • Quarkonium
  • Relativistic Heavy Ion Physics

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