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Measurement of J/psi production in $pp$ collisions at $s=2.76$ TeV

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Original languageEnglish
Pages (from-to)041
Number of pages1
JournalJournal of High Energy Physics
Volume1302
Early online date5 Dec 2012
DOIs
StatePublished - Feb 2013

Abstract

The production of J/psi mesons is studied with the LHCb detector using data from pp collisions at sqrt(s)=2.76 TeV corresponding to an integrated luminosity of 71 nb^-1. The differential cross-section for inclusive J/psi production is measured as a function of its transverse momentum pT. The cross-section in the fiducial region 0<pT<12 GeV/c and rapidity 2.0<y<4.5 is measured to be 5.6 +/- 0.1(stat) +/- 0.4 (syst) mub, with the assumption of unpolarised J/psi production. The fraction of J/psi production from b-hadron decays is measured to be (7.1 +/- 0.6 (stat) +/- 0.7 (syst)) %.

ID: 7601059