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First observation and measurement of the branching fraction for the decay B0s→D∗∓sK±

The first observation of the Bs0 → Ds∗∓K± decay is reported using 3.0 fb−1 of proton-proton collision data collected by the LHCb experiment. The Ds∗∓ mesons are reconstructed through the decay chain Ds∗∓ → γDs∓(K∓K±π∓). The branching fraction relative to that for Bs0 → Ds∗−π+ decays is measured to b...

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Main Authors: Aaij, Roel (Author) , Aquines Gutiérrez, Osvaldo (Author) , Bachmann, Sebastian (Author) , Bien, Alexander (Author) , Blouw, Johan (Author) , Braun, Svende (Author) , Britsch, Markward (Author) , Comerma-Montells, Albert (Author) , De Cian, Michel (Author) , Dordei, Francesca (Author) , Esen, Sevda (Author) , Färber, Christian (Author) , Fontana, Marianna (Author) , Gerick, David (Author) , Gersabeck, Evelina (Author) , Grillo, Lucia (Author) , Han, Xiaoxue (Author) , Hansmann-Menzemer, Stephanie (Author) , Jäger, Andreas (Author) , Kolpin, Michael (Author) , Kreplin, Katharina (Author) , Krocker, Georg Alexander (Author) , Leverington, Blake (Author) , Marks, Jörg (Author) , Meißner, Marco (Author) , Mitzel, Dominik (Author) , Neubert, Sebastian (Author) , Neuner, Max (Author) , Nikodem, Thomas (Author) , Schmelling, Michael (Author) , Seyfert, Paul (Author) , Stahl, Marian (Author) , Stahl, Sascha (Author) , Uwer, Ulrich (Author) , Vesterinen, Mika (Author) , Waldi, Roland (Author) , Wandernoth, Sebastian (Author) , Wiedner, Dirk (Author) , Zhelezov, Alexey (Author)
Corporate Author: LHCb Collaboration (Author)
Format: Article (Journal)
Language:English
Published: June 18, 2015
In: Journal of high energy physics
Year: 2015, Issue: 6
ISSN:1029-8479
DOI:10.1007/JHEP06(2015)130
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/JHEP06(2015)130
Verlag, Volltext: http://download.springer.com/static/pdf/856/art%253A10.1007%252FJHEP06%25282015%2529130.pdf?originUrl=
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Author Notes:the LHCb Collaboration
Description
Summary:The first observation of the Bs0 → Ds∗∓K± decay is reported using 3.0 fb−1 of proton-proton collision data collected by the LHCb experiment. The Ds∗∓ mesons are reconstructed through the decay chain Ds∗∓ → γDs∓(K∓K±π∓). The branching fraction relative to that for Bs0 → Ds∗−π+ decays is measured to beℬBs0→Ds∗∓K±/ℬBs0→Ds∗−π+=0.068±0.005−0.002+0.003, where the first uncertainty is statistical and the second is systematic. Using a recent measurement of ℬBs0→Ds∗−π+, the absolute branching fraction of Bs0 → Ds∗∓K± is measured asℬBs0→Ds∗∓K±=16.3±1.2stat−0.5+0.7syst±4.8norm×10−5, where the third uncertainty is due to the uncertainty on the branching fraction of the normalisation channel.
Item Description:Im Titel sind "∓" und "±" hochgestellt
Im Titel sind "0" und "s" untereinander geschrieben: "0" hochgestellt, "s" tiefgestellt
Im Titel sind "∗" und "s" untereinander geschrieben: "∗" hochgestellt, "s" tiefgestellt
The LHCb Collaboration: R. Aaij, O. Aquines Gutierrez, B. Adeva, M. Adinolfi, S. Bachmann, A. Bien, J. Blouw, S. Braun, M. Britsch, A. Comerma-Montells, M. De Cian, F. Dordei, S. Esen, C. Faerber, M. Fontana, D. Gerick, E. Gersabeck, L. Grillo, X. Han, S. Hansmann-Menzemer, A. Jaeger, M. Kolpin, K. Kreplin, G. Krocker, B. Leverington, J. Marks, M. Meissner, D.S. Mitzel, J. Neubert, M. Neuner, T. Nikodem, M. Schmelling, P. Seyfert, M. Stahl, S. Stahl, U. Uwer, M. Vesterinen, R. Waldi, S. Wandernoth, D. Wiedner, A. Zhelezov [und 660 weitere]
Gesehen am 23.11.2020
Physical Description:Online Resource
ISSN:1029-8479
DOI:10.1007/JHEP06(2015)130

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