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Measurement of the B+c meson lifetime using B+c→J/ψμ+νμX decays

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Original languageEnglish
Article numberAaij:2014bva
Pages (from-to)2839
JournalEuropean Physical Journal C: Particles and Fields
Issue number5
Early online date27 Jan 2014
Publication statusPublished - 1 May 2014


The lifetime of the B+c meson is measured using semileptonic decays having a J/ψ meson and a muon in the final state. The data, corresponding to an integrated luminosity of 2 fb−1, are collected by the LHCb detector in pp collisions at a centre-of-mass energy of 8TeV. The measured lifetime is τ=509±8±12 fs,
where the first uncertainty is statistical and the second is systematic.

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