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Measurement of the Bc+ meson lifetime using Bc+→J/ψμ+νμX decays
- The LHCb Collaboration;
- Aaij, R;
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Published Web Location
https://doi.org/10.1140/epjc/s10052-014-2839-xAbstract
The lifetime of the Bc+$${B} _{c} ^+$$ meson is measured using semileptonic decays having a J/ψ$$J/\psi $$ meson and a muon in the final state. The data, corresponding to an integrated luminosity of 2fb-1$$2 \text{ fb }^{-1} $$, are collected by the LHCb detector in pp$$pp$$ collisions at a centre-of-mass energy of 8 TeV. The measured lifetime is τ=509±8±12fs,$$\begin{aligned} \tau = 509\pm 8\pm 12\mathrm {~fs}, \end{aligned}$$where the first uncertainty is statistical and the second is systematic.
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