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Preprint
Report number arXiv:2409.17209 ; CERN-EP-2024-220 ; LHCb-PAPER-2024-026 ; LHCB-PAPER-2024-026
Title Search for B(s)0μ+μ in Bc+π+μ+μ decays
Author(s) LHCb Collaboration  Pokaż wszystkich 2274 autorów
Corporate author(s) LHCb Collaboration
Publication 2024
Imprint 27 Sep 2024
Number of pages 23
Note All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://lbfence.cern.ch/alcm/public/analysis/full-details/1796/ (LHCb public pages)
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; LHCb
Keywords flavor physics ; B physics ; branching fraction ; polarization ; rare decay
Abstract A search for the very rare B0μ+μ and Bs0μ+μ decays is conducted by analysing the Bc+π+μ+μ process. The analysis uses proton-proton collision data collected with the LHCb detector between 2011 and 2018, corresponding to an integrated luminosity of 9 fb1. The signal signatures correspond to simultaneous peaks in the μ+μ and π+μ+μ invariant masses. No evidence for an excess of events over background is observed for either signal decay mode. Upper limits at the 90% confidence level are set on the branching fractions relative to that for Bc+J/ψπ+ decays, RB0(μ+μ)π+/J/ψπ+<3.8×105  and RBs0(μ+μ)π+/J/ψπ+<5.0×105.
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Copyright/License Preprint: © 2024-2025 CERN (License: CC-BY-4.0)
Submitted by lhcb.secretariat@cern.ch



 


 Rekord stworzony 2024-09-27, ostatnia modyfikacja 2024-12-12


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