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Amplitude analysis of the decay B [bar] 0→K0sπ+π- and first observation of the CP asymmetry in B [bar] 0→K [star] (892)-π+

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The time-integrated untagged Dalitz plot of the three-body hadronic charmless decay ¯B0→K0Sπ+π− is studied using a pp collision data sample recorded with the LHCb detector, corresponding to an integrated luminosity of 3.0 fb−1. The decay amplitude is described with an isobar model. Relative contribu...

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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) , Dziewiecki, Michal (Author) , Gerick, David (Author) , Grabowski, Jascha (Author) , Han, Xiaoxue (Author) , Hansmann-Menzemer, Stephanie (Author) , Kecke, Matthieu (Author) , Khanji, Basem (Author) , Kolpin, Michael (Author) , Kopecná, Renata (Author) , Leverington, Blake (Author) , Marks, Jörg (Author) , Mitzel, Dominik (Author) , Neubert, Sebastian (Author) , Neuner, Max (Author) , Piucci, Alessio (Author) , Skidmore, Nicola (Author) , Stahl, Marian (Author) , Stemmle, Simon (Author) , Uwer, Ulrich (Author) , Zhelezov, Alexey (Author) , Esen, Sevda (Author) , De Cian, Michel (Author) , Nikodem, Thomas (Author) , Seyfert, Paul (Author)
Corporate Author: LHCb Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 25 June 2018
In: Physical review letters
Year: 2018, Volume: 120, Issue: 26
ISSN:1079-7114
DOI:10.1103/PhysRevLett.120.261801
Online Access:Verlag, Volltext: https://doi.org/10.1103/PhysRevLett.120.261801
Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.120.261801
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Author Notes:R. Aaij et al.* (LHCb collaboration)
Description
Summary:The time-integrated untagged Dalitz plot of the three-body hadronic charmless decay ¯B0→K0Sπ+π− is studied using a pp collision data sample recorded with the LHCb detector, corresponding to an integrated luminosity of 3.0 fb−1. The decay amplitude is described with an isobar model. Relative contributions of the isobar amplitudes to the ¯B0→K0Sπ+π− decay branching fraction and CP asymmetries of the flavor-specific amplitudes are measured. The CP asymmetry between the conjugate ¯B0→K∗(892)−π+ and B0→K∗(892)+π− decay rates is determined to be −0.308±0.062.
Item Description:Im Titel sind "0" und "s" untereinander geschrieben: "0" hochgestellt, "s" tiefgestellt
Im Titel sind "star" und "pi" als griechische Buchstaben dargestellt
Im Titel ist der griechische Buchstabe "star" hochgestellt
Im Titel ist "0" hochgestellt
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. Kopecna, B. Leverington, J. Marks, D.S. Mitzel, S. Neubert, M. Neuner, T. Nikodem, A. Piucci, P. Seyfert, M. Stahl, S. Stemmle, N. Skidmore, U. Uwer, A. Zhelezov [und weitere] (LHCb collaboration)
Gesehen am 21.05.2019
Physical Description:Online Resource
ISSN:1079-7114
DOI:10.1103/PhysRevLett.120.261801

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