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First observation of the decay B0s → φK[bar]*0

Abstract:The first observation of the decayB0s→φK∗0 is reported.Theanalysis is based on a data sample corresponding to an integrated luminosity of 1.0 fb−1of pp collisions at√s= 7 TeV, collected with the LHCb detector. A yield of 30±6B0s→(K+K−)(K−π+) decays is found in t...

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Main Authors: Aaij, Roel (Author) , Aquines Gutiérrez, Osvaldo (Author) , Bachmann, Sebastian (Author) , Bien, Alexander (Author) , Blouw, Johan (Author) , Britsch, Markward (Author) , Di Canto, Angelo (Author) , Dordei, Francesca (Author) , Färber, Christian (Author) , Fontana, Marianna (Author) , Gersabeck, Evelina (Author) , Grünberg, Oliver (Author) , Hansmann-Menzemer, Stephanie (Author) , Hartmann, Thomas (Author) , Jäger, Andreas (Author) , Kreplin, Katharina (Author) , Krocker, Georg Alexander (Author) , Leverington, Blake (Author) , Linn, Christian (Author) , Marks, Jörg (Author) , Meißner, Marco (Author) , Nikodem, Thomas (Author) , Popov, Dmitry (Author) , Schmelling, Michael (Author) , Seyfert, Paul (Author) , Stahl, Sascha (Author) , Tilburg, Jeroen van (Author) , Uwer, Ulrich (Author) , Volyanskyy, D. (Author) , Voß, Christian (Author) , Voss, H. (Author) , Waldi, Roland (Author) , Wandernoth, Sebastian (Author) , Wiedner, Dirk (Author) , Zavertyaev, M. (Author) , Zhelezov, Alexey (Author)
Corporate Author: LHCb Collaboration (Author)
Format: Article (Journal)
Language:English
Published: November 12, 2013
In: Journal of high energy physics
Year: 2013, Issue: 11, Pages: 1-21
ISSN:1029-8479
DOI:10.1007/JHEP11(2013)092
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/JHEP11(2013)092
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Author Notes:The LHCb collaboration
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Summary:Abstract:The first observation of the decayB0s→φK∗0 is reported.Theanalysis is based on a data sample corresponding to an integrated luminosity of 1.0 fb−1of pp collisions at√s= 7 TeV, collected with the LHCb detector. A yield of 30±6B0s→(K+K−)(K−π+) decays is found in the mass win-dows 1012.5< M(K+K−)<1026.5 MeV/c2 and 746< M(K−π+)<1046 MeV/c2. The signal yield is found to be dominated by B0s→φK∗0 decays, and the corresponding branching fraction is measured to be B(B0s→φK∗0)= (1.10±0.24 (stat)±0.14 (syst)±0.08 (fd/fs))×10−6, where the uncertainties arestatistical, systematic and from the ratio of fragmentation fractions fd/fs which accounts for the different production rate of B0 and B0s mesons. The significance of B0s→φK∗0 signal is 6.1 standard deviations. The fraction of longitudinal polarization in B0s→φK∗0 decays is found to be f0= 0.51±0.15 (stat)±0.07 (syst).
Item Description:Im Titel steht der Buchstabe K mit einem Oberstrich
Im Titel ist "0" hoch- und "s" tiefgestellt
LHCb Collaboration: R. Aaij, O. Aquines Gutierrez, S. Bachmann, A. Bien, J. Blouw, M. Britsch, A. Di Canto, F. Dordei, C. Färber, M. Fontana, E. Gersabeck, O. Grünberg, S. Hansmann-Menzemer, T. Hartmann, A. Jaeger, K. Kreplin, G. Krocker, B. Leverington, C. Linn, J. Marks, M. Meissner, T. Nikodem, D. Popov, M. Schmelling, P. Seyfert, S. Stahl, J. van Tilburg, U. Uwer, D. Volyanskyy, C. Voß, H. Voss, R. Waldi, S. Wandernoth, D. Wiedner, M. Zavertyaev, A. Zhelezov und weitere 592
Gesehen am 23.04.2021
Physical Description:Online Resource
ISSN:1029-8479
DOI:10.1007/JHEP11(2013)092

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