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Measurement of CP asymmetry in B0s→Dminus plusK± decays

We report the measurements of the CP -violating parameters in B s 0 → D s ∓ K± decays observed in pp collisions, using a data set corresponding to an integrated luminosity of 3.0 fb−1 recorded with the LHCb detector. We measure Cf = 0.73 ± 0.14 ± 0.05, A f ΔΓ = 0.39 ± 0.28 ± 0.15, AΔΓf¯¯¯=0.31±0.28±...

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Main Authors: Aaij, Roel (Author) , D'Argent, Philippe (Author) , Bachmann, Sebastian (Author) , Berninghoff, Daniel (Author) , Braun, Svende (Author) , Comerma-Montells, Albert (Author) , De Cian, Michel (Author) , Dziewiecki, Michal (Author) , Esen, Sevda (Author) , Gerick, David (Author) , Grabowski, Jascha (Author) , Grünberg, Oliver (Author) , Han, Xiaoxue (Author) , Hansmann-Menzemer, Stephanie (Author) , Heß, Miriam (Author) , Kecke, Matthieu (Author) , Khanji, Basem (Author) , Kolpin, Michael (Author) , Kopecná, Renata (Author) , Leverington, Blake (Author) , Marks, Jörg (Author) , Meinert, Nis (Author) , Mitzel, Dominik (Author) , Neubert, Sebastian (Author) , Neuner, Max (Author) , Nikodem, Thomas (Author) , Piucci, Alessio (Author) , Stahl, Marian (Author) , Stemmle, Simon (Author) , Uwer, Ulrich (Author) , Viemann, Harald (Author) , Waldi, Roland (Author) , Zhelezov, Alexey (Author) , Tilburg, Jeroen van (Author)
Corporate Author: LHCb Collaboration (Author)
Format: Article (Journal)
Language:English
Published: March 12, 2018
In: Journal of high energy physics
Year: 2018, Issue: 3
ISSN:1029-8479
DOI:10.1007/JHEP03(2018)059
Online Access:Verlag, Volltext: https://doi.org/10.1007/JHEP03(2018)059
Verlag, Volltext: https://link.springer.com/content/pdf/10.1007%2FJHEP03%282018%29059.pdf
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Author Notes:the LHCb collaboration
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Summary:We report the measurements of the CP -violating parameters in B s 0 → D s ∓ K± decays observed in pp collisions, using a data set corresponding to an integrated luminosity of 3.0 fb−1 recorded with the LHCb detector. We measure Cf = 0.73 ± 0.14 ± 0.05, A f ΔΓ = 0.39 ± 0.28 ± 0.15, AΔΓf¯¯¯=0.31±0.28±0.15Af¯ΔΓ=0.31±0.28±0.15 {A}_{\overline{f}}^{\varDelta \varGamma }=0.31\pm 0.28\pm 0.15 , Sf = −0.52 ± 0.20 ± 0.07, Sf¯¯¯=−0.49±0.20±0.07Sf¯=−0.49±0.20±0.07 {S}_{\overline{f}}=-0.49\pm 0.20\pm 0.07 , where the uncertainties are statistical and systematic, respectively. These parameters are used together with the world-average value of the B s 0 mixing phase, −2βs, to obtain a measurement of the CKM angle γ from B s 0 → D s ∓ K± decays, yielding γ = (128 − 22 + 17 )° modulo 180°, where the uncertainty contains both statistical and systematic contributions. This corresponds to 3.8 σ evidence for CP violation in the interference between decay and decay after mixing. Open image in new window
Item Description:Im Titel werden "0", "minus plus" und "plus minus" hochgestellt
Gesehen am 22.05.2019
The LHCb collaboration: R. Aaij, P. d'Argent, S. Bachmann, D.Berninghoff, S. Braun, A. Comerma-Montells, M. De Cian, M. Dziewiecki, S. Esen, D. Gerick, J.P. Grabowski, X. Han, S. Hansmann-Menzemer, M. Kecke, B. Khanji, M. Kolpin, R. Kopecná, B. Leverington, J. Marks, D.S. Mitzel, S. Neubert, M. Neuner, T. Nikodem, A. Piucci, M. Stahl, S. Stemmle, J. van Tilburg, U. Uwer, A. Zhelezov [und weitere]
Physical Description:Online Resource
ISSN:1029-8479
DOI:10.1007/JHEP03(2018)059

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