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Search for CP violation in D+s → K0Sπ+, D+ → K0SK+, and D+ → [psi]π+ decays

A search for charge-parity (CP) violation in Cabibbo-suppressed D+s→K0Sπ+, D+→K0SK+, and D+→ϕπ+ decays is reported using proton-proton collision data, corresponding to an integrated luminosity of 3.8 fb−1, collected at a center-of-mass energy of 13 TeV with the LHCb detector. High-yield samples of k...

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Main Authors: Aaij, Roel (Author) , D'Argent, Philippe (Author) , Bachmann, Sebastian (Author) , Berninghoff, Daniel (Author) , Borsato, Martino (Author) , Braun, Svende (Author) , Comerma-Montells, Albert (Author) , Dziewiecki, Michal (Author) , Gerick, David (Author) , Grabowski, Jascha (Author) , Han, Xiaoxue (Author) , Hansmann-Menzemer, Stephanie (Author) , Hu, Jiangqiao (Author) , Kecke, Matthieu (Author) , Klimkovich, Tatsiana (Author) , Kolpin, Michael (Author) , Kopecná, Renata (Author) , Leverington, Blake (Author) , Malygina, Hanna (Author) , Marks, Jörg (Author) , Mitzel, Dominik (Author) , Neubert, Sebastian (Author) , Piucci, Alessio (Author) , Schmelling, Michael (Author) , Skidmore, Nicola (Author) , Stahl, Marian (Author) , Stemmle, Simon (Author) , Uwer, Ulrich (Author) , Zhelezov, Alexey (Author)
Corporate Author: LHCb Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 17 May 2019
In: Physical review letters
Year: 2019, Volume: 122, Issue: 19
ISSN:1079-7114
DOI:10.1103/PhysRevLett.122.191803
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.122.191803
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.122.191803
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Author Notes:R. Aaij et al.*(LHCb Collaboration)
Description
Summary:A search for charge-parity (CP) violation in Cabibbo-suppressed D+s→K0Sπ+, D+→K0SK+, and D+→ϕπ+ decays is reported using proton-proton collision data, corresponding to an integrated luminosity of 3.8 fb−1, collected at a center-of-mass energy of 13 TeV with the LHCb detector. High-yield samples of kinematically and topologically similar Cabibbo-favored D+(s) decays are analyzed to subtract nuisance asymmetries due to production and detection effects, including those induced by CP violation in the neutral kaon system. The results are ACP(D+s→K0Sπ+)=(1.3±1.9±0.5)×10−3,ACP(D+→K0SK+)=(−0.09±0.65±0.48)×10−3,ACP(D+→ϕπ+)=(0.05±0.42±0.29)×10−3,where the first uncertainties are statistical and the second systematic. They are the most precise measurements of these quantities to date, and are consistent with CP symmetry. A combination with previous LHCb measurements, based on data collected at 7 and 8 TeV, is also reported.
Item Description:Im Titel ist "psi" als griechischer Buchstabe dargestellt
Im Titel sind "+" und "0" hochgestellt, "s" ist tiefgestellt
LHCb Collaboration: R. Aaij, P. D'Argent, S. Bachmann, D. Berninghoff, M. Borsato, S. Braun, A. Comerma-Montells, M. Dziewiecki, D. Gerick, J. Grabowski, X. Han, S. Hansmann-Menzemer, J. Hu, M. Kecke, M. Kolpin, R. Kopecná, B. Leverington, H. Malygina, J. Marks, D. Mitzel, S. Neubert, A. Piucci, M. Schmelling, N. Skidmore, M. Stahl, S. Stemmle, U. Uwer, A. Zhelezov [und 818 weitere]
Gesehen am 28.05.2020
Physical Description:Online Resource
ISSN:1079-7114
DOI:10.1103/PhysRevLett.122.191803

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