Search for Bs→μ+μ− and Bd→μ+μ− decays with the full CDF Run II data set
(2013) Physical Review. D, Particles, Fields, Gravitation and Cosmology — Vol. 87, n° 7, p. 072003 [32 pages] (2013)
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- Abstract
- We report on a search for smm and dmm decays using proton-antiproton collision data at s√=1.96 TeV corresponding to $10 b$ of integrated luminosity collected by the CDF detector at the Fermilab Tevatron collider. The observed number of d candidates is consistent with background-only expectations and yields an upper limit on the branching fraction of $rbdmm < 4.6 imes 10^{-9}$ at 95% confidence level. We observe an excess of s candidates. The probability that the background processes alone could produce such an excess or larger is 0.94%. The probability that the combination of background and the expected standard model rate of smm could produce such an excess or larger is 6.8%. These data are used to determine a branching fraction $rbsmm = (1.3^{+0.9}_{-0.7}) imes 10^{-8}$ and provide an upper limit of $rbsmm < 3.1 imes 10^{-8}$ at 95% confidence level.
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Aaltonen, T., Vizan Garcia, J. M., The CDF Collaboration, & et al. (2013). Search for Bs→μ+μ− and Bd→μ+μ− decays with the full CDF Run II data set. Physical Review. D, Particles, Fields, Gravitation and Cosmology, 87(7), 072003 [32 pages]. https://doi.org/10.1103/PhysRevD.87.072003 (Original work published 2013)