Measurement of ϒ production in pp collisions at √s=13 TeV

The Lhcb Collaboration

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Abstract

The production cross-sections of ϒ(1S), ϒ(2S) and ϒ(3S) mesons in proton-proton collisions at s=13 TeV are measured with a data sample corresponding to an integrated luminosity of 277 ± 11 pb−1 recorded by the LHCb experiment in 2015. The ϒ mesons are reconstructed in the decay mode ϒ → μ+μ. The differential production cross-sections times the dimuon branching fractions are measured as a function of the ϒ transverse momentum, pT, and rapidity, y, over the range 0 < pT< 30 GeV/c and 2.0 < y < 4.5. The ratios of the cross-sections with respect to the LHCb measurement at s=8 TeV are also determined. The measurements are compared with theoretical predictions based on NRQCD.

Original languageEnglish (US)
Article number134
JournalJournal of High Energy Physics
Volume2018
Issue number7
DOIs
StatePublished - Jul 1 2018

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Keywords

  • Hadron-Hadron scattering (experiments)
  • QCD
  • Quarkonium

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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