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First measurement of time-dependent CP violation in B0s → K+K− decays

Direct and mixing-induced CP-violating asymmetries in $ B_s^0\to {K^{+}}{K^{-}} $decays are measured for the first time using a data sample of pp collisions, corresponding to an integrated luminosity of 1.0 fb−1, collected with the LHCb detector at a centre-of-mass energy of 7 TeV. The results are C...

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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) , De Cian, Michel (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) , Heß, Miriam (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: October 25, 2013
In: Journal of high energy physics
Year: 2013, Issue: 10, Pages: 1-25
ISSN:1029-8479
DOI:10.1007/JHEP10(2013)183
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/JHEP10(2013)183
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Author Notes:The LHCb collaboration
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Summary:Direct and mixing-induced CP-violating asymmetries in $ B_s^0\to {K^{+}}{K^{-}} $decays are measured for the first time using a data sample of pp collisions, corresponding to an integrated luminosity of 1.0 fb−1, collected with the LHCb detector at a centre-of-mass energy of 7 TeV. The results are CKK = 0.14 ± 0.11 ± 0.03 and SKK = 0.30 ± 0.12 ± 0.04, where the first uncertainties are statistical and the second systematic. The corresponding quantities are also determined for B0 → π+π− decays to be Cππ = −0.38 ± 0.15 ± 0.02 and Sππ = −0.71 ± 0.13 ± 0.02, in good agreement with existing measurements.
Item Description:LHCb Collaboration: R. Aaij, O. Aquines Gutierrez, S. Bachmann, A. Bien, J. Blouw, M. Britsch, M. De Cian, A. Di Canto, F. Dordei, C. Färber, M. Fontana, E. Gersabeck, O. Grünberg, S. Hansmann-Menzemer, T. Hartmann, M. Heß, 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 621
Gesehen am 23.04.2021
Physical Description:Online Resource
ISSN:1029-8479
DOI:10.1007/JHEP10(2013)183

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