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Report number arXiv:1303.7133 ; LHCB-PAPER-2012-047 ; CERN-PH-EP-2013-040 ; LHCB-PAPER-2012-047 ; CERN-PH-EP-2013-040
Title Measurements of the branching fractions of B+pp¯K+ decays
Author(s) LHCb Collaboration  Show all 621 authors
Publication 2013-06-13
Imprint 25 Apr 2013
Number of pages 14
Note Comments: 14 pages, 5 figures
14 pages, 5 figures
In: Eur. Phys. J. C 73 (2013) 2462
DOI 10.1140/epjc/s10052-013-2462-2
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; LHCb
Free keywords QCD ; B physics ; quarkonium ; spectroscopy ; branching fraction
Abstract The branching fractions of the decay B+pp¯K+ for different intermediate states are measured using data, corresponding to an integrated luminosity of 1.0 fb1, collected by the LHCb experiment. The total branching fraction, its charmless component (Mpp¯<2.85 GeV/c2) and the branching fractions via the resonant cc¯ states ηc(1S) and ψ(2S) relative to the decay via a J/ψ intermediate state are B(B+pp¯K+)totalB(B+J/ψK+pp¯K+)=4.91±0.19(stat)±0.14(syst),B(B+pp¯K+)Mpp¯<2.85GeV/c2B(B+J/ψK+pp¯K+)=2.02±0.10(stat)±0.08(syst),B(B+ηc(1S)K+pp¯K+)B(B+J/ψK+pp¯K+)=0.578±0.035(stat)±0.027(syst),B(B+ψ(2S)K+pp¯K+)B(B+J/ψK+pp¯K+)=0.080±0.012(stat)±0.009(syst). Upper limits on the B+ branching fractions into the ηc(2S) meson and into the charmonium-like states X(3872) and X(3915) are also obtained.
Copyright/License publication: © 2013-2024 CERN (License: CC-BY-3.0)
preprint: © 2013-2024 CERN (License: CC-BY-3.0)



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Email contact: anu.liisa.saarelainen@cern.ch


 Record created 2013-04-25, last modified 2024-08-17


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