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First observation of the decay B0→D0D[bar]0K+π−

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 t...

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Main Authors: Aaij, Roel (Author) , Archilli, Flavio (Author) , Bachmann, Sebastian (Author) , Berninghoff, Daniel (Author) , Borsato, Martino (Author) , Dziewiecki, Michal (Author) , Frau, Giulia (Author) , Gerick, David (Author) , Grabowski, Jascha (Author) , Günther, Paul André (Author) , Han, Xiaoxue (Author) , Hansmann-Menzemer, Stephanie (Author) , Hu, Jiangqiao (Author) , Kecke, Matthieu (Author) , Kopecná, Renata (Author) , Leverington, Blake (Author) , Li, Peilian (Author) , Malygina, Hanna (Author) , Marks, Jörg (Author) , Piucci, Alessio (Author) , Stemmle, Simon (Author) , Unverzagt, Daniel Joachim (Author) , Uwer, Ulrich (Author) , Wang, Chishuai (Author) , Witola, Lukas (Author) , Zhelezov, Alexey (Author)
Corporate Author: LHCb Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 22 September 2020
In: Physical review
Year: 2020, Volume: 102, Issue: 5
ISSN:2470-0029
DOI:10.1103/PhysRevD.102.051102
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.102.051102
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.102.051102
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Author Notes:R. Aaij et al. (LHCb Collaboration)
Description
Summary: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.
Item Description:LHCb Collaboration: R. Aaij, F. Archilli, S. Bachmann, D. Berninghoff, M. Borsato, M. Dziewiecki, G. Frau, D. Gerick, J. Grabowski, P.A. Günther, X. Han, S. Hansmann-Menzemer, J. Hu, M. Kecke, R. Kopecná, B. Leverington, P. Li, H. Malygina, J. Marks, A. Piucci, S. Stemmle, D.J. Unverzagt, U. Uwe, C. Wang, L. Witola, A. Zhelezov [und viele weitere]
Im Titel sind die Ziffern "0" und die Plus- und Minuszeichen hochgestellt
Im Titel ist das zweite D im Ausdruck "D0D0K+π−" mit einem Oberstrich dargestellt
Gesehen am 27.10.2020
Physical Description:Online Resource
ISSN:2470-0029
DOI:10.1103/PhysRevD.102.051102

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