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Measurement of CP asymmetry in B0s→D-/+sK+/- decays

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We report on measurements of the time-dependent CP violating observables in Bs0 → Ds∓K± decays using a dataset corresponding to 1.0 fb−1 of pp collisions recorded with the LHCb detector. We find the CP violating observables Cf = 0.53±0.25±0.04, A∆Γ f = 0.37±0.42±0.20, A∆Γ f¯ = 0.20±0.41±0.20, Sf =...

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Main Authors: Aaij, Roel (Author) , Bachmann, Sebastian (Author) , Bien, Alexander (Author) , Britsch, Markward (Author) , Comerma-Montells, Albert (Author) , De Cian, Michel (Author) , Dordei, Francesca (Author) , Esen, Sevda (Author) , Färber, Christian (Author) , Gersabeck, Evelina (Author) , Grillo, Lucia (Author) , Grünberg, Oliver (Author) , Han, Xiaoxue (Author) , Hansmann-Menzemer, Stephanie (Author) , Heß, Miriam (Author) , Jäger, Andreas (Author) , Kolpin, Michael (Author) , Kreplin, Katharina (Author) , Krocker, Georg Alexander (Author) , Leverington, Blake (Author) , Marks, Jörg (Author) , Meißner, Marco (Author) , Neuner, Max (Author) , Nikodem, Thomas (Author) , Seyfert, Paul (Author) , Stahl, Marian (Author) , Stahl, Sascha (Author) , Uwer, Ulrich (Author) , Vesterinen, Mika (Author) , Voß, Christian (Author) , Waldi, Roland (Author) , Wandernoth, Sebastian (Author) , Wiedner, Dirk (Author) , Zhelezov, Alexey (Author)
Corporate Author: LHCb Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 13 November 2014
In: Journal of high energy physics
Year: 2014, Issue: 11
ISSN:1029-8479
DOI:10.1007/JHEP11(2014)060
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/JHEP11(2014)060
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Author Notes:the LHCb collaboration
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Summary:We report on measurements of the time-dependent CP violating observables in Bs0 → Ds∓K± decays using a dataset corresponding to 1.0 fb−1 of pp collisions recorded with the LHCb detector. We find the CP violating observables Cf = 0.53±0.25±0.04, A∆Γ f = 0.37±0.42±0.20, A∆Γ f¯ = 0.20±0.41±0.20, Sf = −1.09±0.33±0.08, Sf¯ = −0.36 ± 0.34 ± 0.08, where the uncertainties are statistical and systematic, respectively. Using these observables together with a recent measurement of the Bs0mixing phase −2βsleads to the first extraction of the CKM angle γ from Bs0 → Ds∓K± decays, finding γ = (115− 43+ 28)° modulo 180° at 68% CL, where the error contains both statistical and systematic uncertainties.
Item Description:Im Titel sind "0", "-/+" und "+/-/ hochgestellt, "s" ist jeweils tiefgestellt, dabei stehen "0" und "-/+" jeweils über "s"
Gesehen am 12.04.2021
LHCb Collaboration: R. Aaij, S. Bachmann, A. Bien, A. Comerma-Montells, M. De Cian, F. Dordei, S. Esen, C. Färber, E. Gersabeck, L. Grillo, X. Han, S. Hansmann-Menzemer, A. Jaeger, M. Kolpin, K. Kreplin, G. Krocker, B. Leverington, J. Marks, M. Meissner, M. Neuner, T. Nikodem, P. Seyfert, M. Stahl, S. Stahl, U. Uwer, M. Vesterinen, S. Wandernoth, D. Wiedner, A. Zhelelov [und 672 weitere Personen]
Im Titel ist die Ziffer "0" sowie die Zeichen "+" und "-" hochgestellt, der Buchstabe "s" ist tiefgestellt
Physical Description:Online Resource
ISSN:1029-8479
DOI:10.1007/JHEP11(2014)060

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