Measurement of the B[subscript c][superscript -] meson lifetime in the decay B[subscript c][superscript -] →J/ψπ[superscript -]
Author(s)
Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Paus, Christoph M. E.
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The lifetime of the B[subscript c][superscript -] meson is measured using 272 exclusive B[subscript c][superscript -]→J/ψ(→μ[superscript +]μ[superscript -])π[superscript -] decays reconstructed in data from proton-antiproton collisions corresponding to an integrated luminosity of 6.7 fb[superscript -1] recorded by the CDF II detector at the Fermilab Tevatron. The lifetime of the B[subscript c][superscript -] meson is measured to be τ(B[subscript c][superscript -])=0.452±0.048(stat)±0.027(syst) ps. This is the first measurement of the B[subscript c][superscript -] meson lifetime in a fully reconstructed hadronic channel, and it agrees with previous results and has comparable precision.
Date issued
2013-01Department
Massachusetts Institute of Technology. Laboratory for Nuclear ScienceJournal
Physical Review D
Publisher
American Physical Society
Citation
Aaltonen, T. et al. “Measurement of the B_{c}^{-} Meson Lifetime in the Decay B_{c}^{-}→J/ψπ^{-}.” Physical Review D 87.1 (2013) © 2013 American Physical Society
Version: Final published version
ISSN
1550-7998
1089-4918