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Search for rare B0(s) → μ+μ−μ+μ− decays

A search for the decays B0s→μ+μ−μ+μ− and B0→μ+μ−μ+μ− is performed using data, corresponding to an integrated luminosity of 1.0 fb−1, collected with the LHCb detector in 2011. The number of candidates observed is consistent with the expected background and, assuming phase-space models of the decays,...

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Autori principali: Aaij, Roel (Autore) , Adametz, Aleksandra (Autore) , Aquines Gutiérrez, Osvaldo (Autore) , Bachmann, Sebastian (Autore) , Bien, Alexander (Autore) , Blouw, Johan (Autore) , Britsch, Markward (Autore) , Di Canto, Angelo (Autore) , Dordei, Francesca (Autore) , Färber, Christian (Autore) , Fontana, Marianna (Autore) , Gersabeck, Evelina (Autore) , Grünberg, Oliver (Autore) , Hansmann-Menzemer, Stephanie (Autore) , Hartmann, Thomas (Autore) , Jäger, Andreas (Autore) , Kreplin, Katharina (Autore) , Krocker, Georg Alexander (Autore) , Linn, Christian (Autore) , Marks, Jörg (Autore) , Meißner, Marco (Autore) , Nikodem, Thomas (Autore) , Popov, Dmitry (Autore) , Schmelling, Michael (Autore) , Seyfert, Paul (Autore) , Stahl, Sascha (Autore) , Tilburg, Jeroen van (Autore) , Uwer, Ulrich (Autore) , Volyanskyy, D. (Autore) , Voß, Christian (Autore) , Voss, H. (Autore) , Waldi, Roland (Autore) , Wandernoth, Sebastian (Autore) , Wiedner, Dirk (Autore) , Zavertyaev, M. (Autore) , Zhelezov, Alexey (Autore)
Ente Autore: LHCb Collaboration (Autore)
Natura: Article (Journal)
Lingua:inglese
Pubblicazione: 21 May 2013
In: Physical review letters
Year: 2013, Volume: 110, Fascicolo: 21, Pages: 1-8
ISSN:1079-7114
DOI:10.1103/PhysRevLett.110.211801
Accesso online:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.110.211801
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.110.211801
Testo
Note sull'autore:R. Aaij et al. (LHCb Collaboration)
Descrizione
Riassunto:A search for the decays B0s→μ+μ−μ+μ− and B0→μ+μ−μ+μ− is performed using data, corresponding to an integrated luminosity of 1.0 fb−1, collected with the LHCb detector in 2011. The number of candidates observed is consistent with the expected background and, assuming phase-space models of the decays, limits on the branching fractions are set: B(B0s→μ+μ−μ+μ−)<1.6(1.2)×10−8 and B(B0→μ+μ−μ+μ−)<6.6(5.3)×10−9 at 95% (90%) confidence level. In addition, limits are set in the context of a supersymmetric model which allows for the B0(s) meson to decay into a scalar (S) and pseudoscalar particle (P), where S and P have masses of 2.5 GeV/c and 214.3 MeV/c, respectively, both resonances decay into μ+μ−. The branching fraction limits for these decays are B(B0s→SP)<1.6(1.2)×10−8 and B(B0→SP)<6.3(5.1)×10−9 at 95% (90%) confidence level.
Descrizione del documento:Im Titel sind "0", "+" und "-" hochgestellt und "(s)" tiefgestellt
LHCb Collaboration: R. Aaij, A. Adametz, O. Aquines Gutierrez, S. Bachmann, A. Bien, J. Blouw, M. Britsch, A. Di Canto, F. Dordei, C. Färber, M. Fontana, E. Gersabeck, O. Grünberg, S. Hansmann-Menzemer, T. Hartmann, A. Jaeger, K. Kreplin, G. Krocker, 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 23.04.2021
Descrizione fisica:Online Resource
ISSN:1079-7114
DOI:10.1103/PhysRevLett.110.211801

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