Measurement of B meson production cross-sections in proton-proton collisions at √s = 7 TeV

The Lhcb Collaboration

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58 Scopus citations

Abstract

The production cross-sections of B mesons are measured in pp collisions at a centre-of-mass energy of 7 TeV, using data collected with the LHCb detector corresponding to a integrated luminosity of 0.36 fb−1. The B+, B and B0s mesons are reconstructed in the exclusive decays B+ → J/ψ K+, B0 → J/ψ K*0 and B0s → J/ψφ‚ with J/ψ → K*0 → K+π and φ → K+K. The differential cross-sections are measured as functions of B meson transverse momentum pT and rapidity y, in the range 0 < pT < 40 GeV/c and 2.0 < y < 4.5. The integrated cross-sections in the same pT and y ranges, including charge-conjugate states, are measured to be σ(pp → B+ + X) = 38.9 ± 0.3 (stat.) ± 2.5 (syst.) ± 1.3 (norm.) μb, σ(pp → B0 + X) = 38.1 ± 0.6 (stat.) ± 3.7 (syst.) ± 4.7 (norm.) μb, σ(pp → B0s + X) = 10.5 ± 0.2 (stat.) ± 0.8 (syst.) ± 1.0 (norm.) μb, where the third uncertainty arises from the pre-existing branching fraction measurements.

Original languageEnglish (US)
Article number117
JournalJournal of High Energy Physics
Volume2013
Issue number8
DOIs
StatePublished - Aug 26 2013

Keywords

  • Hadron-Hadron Scattering
  • Heavy quark production

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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