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

The Lhcb Collaboration

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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 0 and Bs 0 mesons are reconstructed in the exclusive decays B + → J/ψK +, B 0 → J/ψK *0 and B s 0→ J /ψφ, with J/ψ → μ + μ -, K *0 → K +π- and φ → K + K - . The differential cross-sections are measured as functions of B meson transverse momentum p T and rapidity y, in the range 0 < p T < 40 GeV/c and 2.0 < y < 4.5. The integrated cross-sections in the same p T 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, (pp ± Bs0.

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

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Keywords

  • Hadron-Hadron Scattering
  • Heavy quark production

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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