43 research outputs found

    Erratum: first observation of the rare BĂŸ → DĂŸKĂŸÏ€âˆ’ decay [Phys. Rev. D 93, 051101(R) (2016)]

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    A precise measurement of the B0B^0 meson oscillation frequency

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    The oscillation frequency, Δmd\Delta m_d, of B0B^0 mesons is measured using semileptonic decays with a D−D^- or D∗−D^{*-} meson in the final state, in a data sample of pppp collisions collected by the LHCb detector corresponding to an integrated luminosity of 3.0\mbox{fb}^{-1}. A combination of the two decay modes gives Δmd=(505.0±2.1±1.0) ns−1\Delta m_d = (505.0 \pm 2.1 \pm 1.0) \rm \,ns^{-1}, where the first uncertainty is statistical and the second is systematic. This is the most precise single measurement of this parameter. It is compatible with the current world average and has similar precision.Comment: All figures and tables, along with any supplementary material and additional information, are available at https://lhcbproject.web.cern.ch/lhcbproject/Publications/LHCbProjectPublic/LHCb-PAPER-2015-031.htm
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