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Search for direct CP violation in D0 → h−h+ modes using semileptonic B decays

A search for direct CP violation in D0→h−h+ (where h=K or π) is presented using data corresponding to an integrated luminosity of 1.0 fb−1 collected in 2011 by LHCb in pp collisions at a centre-of-mass energy of 7 TeV. The analysis uses D0 mesons produced in inclusive semileptonic b-hadron decays to...

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Detalles Bibliográficos
Autores principales: Aaij, Roel (Autor) , Aquines Gutiérrez, Osvaldo (Autor) , Bachmann, Sebastian (Autor) , Bien, Alexander (Autor) , Blouw, Johan (Autor) , Britsch, Markward (Autor) , Dordei, Francesca (Autor) , Färber, Christian (Autor) , Fontana, Marianna (Autor) , Gersabeck, Evelina (Autor) , Grünberg, Oliver (Autor) , Hansmann-Menzemer, Stephanie (Autor) , Hartmann, Thomas (Autor) , Jäger, Andreas (Autor) , Kreplin, Katharina (Autor) , Krocker, Georg Alexander (Autor) , Leverington, Blake (Autor) , Linn, Christian (Autor) , Marks, Jörg (Autor) , Meißner, Marco (Autor) , Nikodem, Thomas (Autor) , Popov, Dmitry (Autor) , Schmelling, Michael (Autor) , Seyfert, Paul (Autor) , Stahl, Sascha (Autor) , Tilburg, Jeroen van (Autor) , Uwer, Ulrich (Autor) , Volyanskyy, D. (Autor) , Voß, Christian (Autor) , Voss, H. (Autor) , Waldi, Roland (Autor) , Wandernoth, Sebastian (Autor) , Wiedner, Dirk (Autor) , Zavertyaev, M. (Autor) , Zhelezov, Alexey (Autor)
Autor Corporativo: LHCb Collaboration (Autor)
Formato: Article (Journal)
Lenguaje:inglés
Publicado: 3 May 2013
In: Physics letters
Year: 2013, Volumen: 723, Número: 1/3, Pages: 33-43
ISSN:1873-2445
DOI:10.1016/j.physletb.2013.04.061
Acceso en línea:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.physletb.2013.04.061
Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S037026931300350X
Enlace del recurso
Notas de Autor:LHCb Collaboration
Descripción
Sumario:A search for direct CP violation in D0→h−h+ (where h=K or π) is presented using data corresponding to an integrated luminosity of 1.0 fb−1 collected in 2011 by LHCb in pp collisions at a centre-of-mass energy of 7 TeV. The analysis uses D0 mesons produced in inclusive semileptonic b-hadron decays to the D0μX final state, where the charge of the accompanying muon is used to tag the flavour of the D0 meson. The difference in the CP-violating asymmetries between the two decay channels is measured to beΔACP=ACP(K−K+)−ACP(π−π+)=(0.49±0.30(stat)±0.14(syst))%. This result does not confirm the evidence for direct CP violation in the charm sector reported in other analyses.
Notas:Im Titel sind "0", "-" und "+" hochgestellt
LHCb Collaboration: R. Aaij, O. Aquines Gutierrez, S. Bachmann, A. Bien, J. Blouw, M. Britsch, F. Dordei, C. Färber, M. Fontana, E. Gersabeck, O. Grünberg, S. Hansmann-Menzemer, T. Hartmann, A. Jaeger, K. Kreplin, G. Krocker, B. Leverington, C. Linn, J. Marks, M. Meissner, T. Nikodem, D. Popov, M. Schmelling, P. Seyfert, S. Stahl, J. van Tilburg, U. Uwer, D. Volyanskyy, C. Voß, H. Voss, R. Waldi, S. Wandernoth, D. Wiedner, M. Zavertyaev, A. Zhelezov und weitere 586
Gesehen am 16.04.2021
Descripción Física:Online Resource
ISSN:1873-2445
DOI:10.1016/j.physletb.2013.04.061

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