Search for Rare B[0 over (s)]→μ[superscript +]μ[superscript -]μ[superscript +]μ[superscript -] Decays
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Aaij-2013-Search for Rare B-(s.pdf
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292.51 KB
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Author(s)
Williams, Michael
Date Issued
May 2013
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Aaij, R., C. Abellan Beteta, A. Adametz, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, et al. “Search for Rare B_{(s)}^{0}→μ^{+}μ^{-}μ^{+}μ^{-} Decays.” Physical Review Letters 110, no. 21 (May 2013). © 2013 CERN
Version
Final published version
Abstract
A search for the decays B[0 over s]→μ[superscript +]μ[superscript -]μ[superscript +]μ[superscript -] and B[superscript 0]→μ[superscript +]μ[superscript -]μ[superscript +]μ[superscript -] is performed using data, corresponding to an integrated luminosity of 1.0 fb[superscript -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(B[0 over s]→μ[superscript +]μ[superscript -]μ[superscript +]μ[superscript -])<1.6(1.2)×10[superscript -8] and B(B[superscript 0]→μ[superscript +]μ[superscript -]μ[superscript +]μ[superscript -])<6.6(5.3)×10[superscript -9] at 95% (90%) confidence level. In addition, limits are set in the context of a supersymmetric model which allows for the B[0 over (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[superscript +]μ[superscript -]. The branching fraction limits for these decays are B(B[0 over s]→SP)<1.6(1.2)×10[superscript -8] and B(B[superscript 0]→SP)<6.3(5.1)×10[superscript -9] at 95% (90%) confidence level.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.110.211801
