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Observation of B+c→D0K+ decays

Using proton-proton collision data corresponding to an integrated luminosity of 3.0 fb−1, recorded by the LHCb detector at center-of-mass energies of 7 and 8 TeV, the B+c→D0K+ decay is observed with a statistical significance of 5.1 standard deviations. By normalizing to B+→¯D0π+ decays, a measureme...

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Main Authors: Aaij, Roel (Author) , D'Argent, Philippe (Author) , Bachmann, Sebastian (Author) , Braun, Svende (Author) , Britsch, Markward (Author) , Comerma-Montells, Albert (Author) , De Cian, Michel (Author) , Esen, Sevda (Author) , Gerick, David (Author) , Gersabeck, Evelina (Author) , Han, Xiaoxue (Author) , Hansmann-Menzemer, Stephanie (Author) , Kecke, Matthieu (Author) , Khanji, Basem (Author) , Kolpin, Michael (Author) , Kreplin, Katharina (Author) , Leverington, Blake (Author) , Marks, Jörg (Author) , Meißner, Marco (Author) , Mitzel, Dominik (Author) , Neubert, Sebastian (Author) , Neuner, Max (Author) , Nikodem, Thomas (Author) , Piucci, Alessio (Author) , Schiller, Manuel (Author) , Seyfert, Paul (Author) , Stahl, Marian (Author) , Stemmle, Simon (Author) , Uwer, Ulrich (Author) , Vesterinen, Mika (Author) , Zhelezov, Alexey (Author)
Corporate Author: LHCb Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 15 March 2017
In: Physical review letters
Year: 2017, Volume: 118, Issue: 11
ISSN:1079-7114
DOI:10.1103/PhysRevLett.118.111803
Online Access:Verlag, Volltext: http://dx.doi.org/10.1103/PhysRevLett.118.111803
Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.118.111803
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Author Notes:R. Aaij et al.* (LHCb Collaboration)
Description
Summary:Using proton-proton collision data corresponding to an integrated luminosity of 3.0 fb−1, recorded by the LHCb detector at center-of-mass energies of 7 and 8 TeV, the B+c→D0K+ decay is observed with a statistical significance of 5.1 standard deviations. By normalizing to B+→¯D0π+ decays, a measurement of the branching fraction multiplied by the production rates for B+c relative to B+ mesons in the LHCb acceptance is obtained, RD0K=(fc/fu)×B(B+c→D0K+)=(9.3+2.8−2.5±0.6)×10−7, where the first uncertainty is statistical and the second is systematic. This decay is expected to proceed predominantly through weak annihilation and penguin amplitudes, and is the first B+c decay of this nature to be observed.
Item Description:Gesehen am 26.10.2020
R. Aaij, P. d’Argent, S. Bachmann, S. Braun, M. Britsch, A. Comerma-Montells, M. De Cian, S. Esen, D.Gerick, E. Gersabeck, X.Han, S. Hansmann-Menzemer, M. Kecke, B. Khanji, M. Kolpin, K. Kreplin, B. Leverington, J. Marks, M. Meissner, D.S. Mitzel, S. Neubert, M. Neuner, T. Nikodem, A. Piucci, P. Seyfert, M. Schiller, M. Stahl, S. Stemmle, U. Uwer, M. Vesterinen, A. Zhelezov [und weitere]
Im Titel sind die Pluszeichen und die Ziffer "0" hochgestellt
Im Titel sind "+" und "c" übereinander geschrieben, wobei "+" oben und "c" unten steht
Physical Description:Online Resource
ISSN:1079-7114
DOI:10.1103/PhysRevLett.118.111803

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