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Model-independent observation of exotic contributions to B0→J/[psi] K+ π− decays

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An angular analysis of B0→J/ψK+π− decays is performed, using proton-proton collision data corresponding to an integrated luminosity of 3 fb−1 collected with the LHCb detector. The m(K+π−) spectrum is divided into fine bins. In each m(K+π−) bin, the hypothesis that the three-dimensional angular distr...

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Detalles Bibliográficos
Autores principales: Aaij, Roel (Autor) , Bachmann, Sebastian (Autor) , Berninghoff, Daniel (Autor) , Braun, Svende (Autor) , Comerma-Montells, Albert (Autor) , D'Argent, Philippe (Autor) , Dziewiecki, Michal (Autor) , Gerick, David (Autor) , Grabowski, Jascha (Autor) , Han, Xiaoxue (Autor) , Hansmann-Menzemer, Stephanie (Autor) , Hu, Jiangqiao (Autor) , Kecke, Matthieu (Autor) , Kolpin, Michael (Autor) , Kopecná, Renata (Autor) , Leverington, Blake (Autor) , Marks, Jörg (Autor) , Mitzel, Dominik (Autor) , Neubert, Sebastian (Autor) , Piucci, Alessio (Autor) , Skidmore, Nicola (Autor) , Stahl, Marian (Autor) , Stemmle, Simon (Autor) , Uwer, Ulrich (Autor) , Zhelezov, Alexey (Autor)
Autor Corporativo: LHCb Collaboration (Autor)
Formato: Article (Journal)
Lenguaje:inglés
Publicado: 17 April 2019
In: Physical review letters
Year: 2019, Volumen: 122, Número: 15, Pages: 1-10
ISSN:1079-7114
DOI:10.1103/PhysRevLett.122.152002
Acceso en línea:Verlag, Volltext: https://doi.org/10.1103/PhysRevLett.122.152002
Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.122.152002
Enlace del recurso
Notas de Autor:R. Aaij, S. Bachmann, D. Berninghoff, S. Braun, A. Comerma-Montells, P. d’Argent, M. Dziewiecki, D. Gerick, J.P. Grabowski, X. Han, S. Hansmann-Menzemer, J. Hu, M. Kecke, M. Kolpin, R. Kopecna, B. Leverington, J. Marks, D.S. Mitzel, S. Neubert, A. Piucci, N. Skidmore, M. Stahl, S. Stemmle, U. Uwer, A. Zhelezov [und weitere]
Descripción
Sumario:An angular analysis of B0→J/ψK+π− decays is performed, using proton-proton collision data corresponding to an integrated luminosity of 3 fb−1 collected with the LHCb detector. The m(K+π−) spectrum is divided into fine bins. In each m(K+π−) bin, the hypothesis that the three-dimensional angular distribution can be described by structures induced only by K∗ resonances is examined, making minimal assumptions about the K+π− system. The data reject the K∗-only hypothesis with a large significance, implying the observation of exotic contributions in a model-independent fashion. Inspection of the m(J/ψπ−) vs m(K+π−) plane suggests structures near m(J/ψπ−)=4200 and 4600 MeV.
Notas:Im Titel werden "pi" und "psi" als griechische Buchstaben dargestellt
Im Titel sind "0", "+" und "-" hochgestellt
Gesehen am 10.05.2019
Descripción Física:Online Resource
ISSN:1079-7114
DOI:10.1103/PhysRevLett.122.152002

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