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Measurement of CP asymmetries in D±→[eta]'π± and D±s→[eta]'π± decays

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D±→η′π± and Ds±→η′π± decays is performed using proton-proton collision data, corresponding to an integrated luminosity of 3 fb−1, recorded by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The measured CP-violating charge asymmetries are ACP(D±→η′π±)=(−0.61±0.72±0.53±0.12)% and ACP(D...

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Main Authors: Aaij, Roel (Author) , D'Argent, Philippe (Author) , Bachmann, Sebastian (Author) , Braun, Svende (Author) , Comerma-Montells, Albert (Author) , De Cian, Michel (Author) , Esen, Sevda (Author) , Gerick, David (Author) , Gersabeck, Evelina (Author) , Han, Xiaoxue (Author) , Hansmann-Menzemer, Stephanie (Author) , Kecke, Matthieu (Author) , Khanji, Basem (Author) , Kolpin, Michael (Author) , Leverington, Blake (Author) , Marks, Jörg (Author) , Mitzel, Dominik (Author) , Neubert, Sebastian (Author) , Neuner, Max (Author) , Piucci, Alessio (Author) , Stahl, Marian (Author) , Stemmle, Simon (Author) , Uwer, Ulrich (Author) , Zhelezov, Alexey (Author)
Corporate Author: LHCb Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 12 May 2017
In: Physics letters
Year: 2017, Volume: 771, Pages: 21-30
ISSN:1873-2445
DOI:10.1016/j.physletb.2017.05.013
Online Access:Verlag, kostenfrei, Volltext: http://dx.doi.org/10.1016/j.physletb.2017.05.013
Verlag, kostenfrei, Volltext: http://www.sciencedirect.com/science/article/pii/S0370269317303702
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Author Notes:LHCb collaboration
Description
Summary:D±→η′π± and Ds±→η′π± decays is performed using proton-proton collision data, corresponding to an integrated luminosity of 3 fb−1, recorded by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The measured CP-violating charge asymmetries are ACP(D±→η′π±)=(−0.61±0.72±0.53±0.12)% and ACP(Ds±→η′π±)=(−0.82±0.36±0.22±0.27)%, where the first uncertainties are statistical, the second systematic, and the third are the uncertainties on the ACP(D±→KS0π±) and ACP(Ds±→ϕπ±) measurements used for calibration. The results represent the most precise measurements of these asymmetries to date.
Item Description:LHCb collaboration: R. Aaij, P. d’Argent, S. Bachmann, S. Braun, A. Comerma-Montells, M. De Cian, S. Esen, D. Gerick, E. Gersabeck, X. Han, S. Hansmann-Menzemer, M. Kecke, B. Khanji, M. Kolpin, B. Leverington, J. Marks, D.S. Mitzel, S. Neubert, M. Neuner, A. Piucci, M. Stahl, S. Stemmle, U. Uwer, A. Zhelezov [und weitere]
Im Titel sind "+" und "-" untereinander geschrieben: "-" tiefgestellt, "+" hochgestellt
Im Titel sind "±" und "s" untereinander geschrieben: "s" tiefgestellt, "±" hochgestellt
Im Titel wird "eta" als griechischer Buchstabe dargestellt
Gesehen am 20.10.2020
Physical Description:Online Resource
ISSN:1873-2445
DOI:10.1016/j.physletb.2017.05.013

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