Measurement of the B[subscript c][superscript -] meson lifetime in the decay B[subscript c][superscript -] →J/ψπ[superscript -]
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Aaltonen-2013-meson lifetime in the decay.pdf
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Author(s)
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Paus, Christoph M. E.
Date Issued
January 2013
Journal
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
Abstract
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.
MIT Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.87.011101
