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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/174858
First observation of the decay B-0 -> D-0(D)over-bar(0)K(+)pi(-)
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The first observation of the decay B0→D0¯D0K+π− is reported using proton-proton collision data corresponding to an integrated luminosity of 4.7 fb−1 collected by the LHCb experiment in 2011, 2012 and 2016. The measurement is performed in the full kinematically allowed range of the decay outside of the D*− region. The ratio of the branching fraction relative to that of the control channel B0→D*−D0K+ is measured to be R=(14.2±1.1±1.0)%, where the first uncertainty is statistical and the second is systematic. The absolute branching fraction of B0→D0¯D0K+π− decays is thus determined to be B(B0→D0¯D0K+π−)=(3.50±0.27±0.26±0.30)×10−4, where the third uncertainty is due to the branching fraction of the control channel. This decay mode is expected to provide insights to spectroscopy and the charm-loop contributions in rare semileptonic decays.
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ALFONSO ALBERO, Alejandro, et al. First observation of the decay B-0 -> D-0(D)over-bar(0)K(+)pi(-). Physical Review D. 2020. Vol. 102, num. 5, pags. 051102. ISSN 1550-7998. [consulted: 23 of May of 2026]. Available at: https://hdl.handle.net/2445/174858