First observation of the decay
R Aaij, C Abellán Beteta, T Ackernley, B Adeva… - Physical Review D, 2020 - APS
Physical Review D, 2020•APS
The first observation of the decay B 0→ D 0 D¯ 0 K+ 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 B 0→ D*-D 0 K+ 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 …
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 B 0→ D*-D 0 K+ 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 …
The first observation of the decay is reported using proton-proton collision data corresponding to an integrated luminosity of 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 region. The ratio of the branching fraction relative to that of the control channel is measured to be , where the first uncertainty is statistical and the second is systematic. The absolute branching fraction of decays is thus determined to be B(B0→D0D¯0K+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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