Observation of B[0 over S] → K*[superscript ±] K[superscript ∓] and evidence for B[0 over S] → K*[superscript -] π [superscript +] decays
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Aaij-2014-Observation of Bs0 K.pdf
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Author(s)
Counts, Ian Thomas Hunt
Ilten, Philip J
Williams, Michael
Date Issued
December 2014
Journal
New Journal of Physics
Publisher
IOP Publishing
Citation
Aaij, R, B Adeva, M Adinolfi, A Affolder, Z Ajaltouni, S Akar, J Albrecht, et al. “Observation of B[0 over S] → K*[superscript ±] K[superscript ∓] and Evidence for B[0 over S] → K*[superscript -] π [superscript +] Decays.” New Journal of Physics 16, no. 12 (December 1, 2014): 123001.
Version
Final published version
Abstract
Measurements of the branching fractions of B[0 over S] → K*[superscript ±] K[superscript ∓] and B[0 over S] → K*[superscript ±] π [superscript ∓] decays are performed using a data sample corresponding to 1.0 fb[superscript -1] of proton-proton collision data collected with the LHCb detector at a centre-of-mass energy of 7 TeV, where the K*[superscript ±] mesons are reconstructed in the K[0 over S] π [superscript ±] final state. The first observation of the B[0 over S] → K*[superscript ±] K[superscript ∓] decay and the first evidence for the B[0 over S] → K*[superscript -] π [superscript +] decay are reported with branching fractions
B (B [0 over S] → K*[superscript ±] K [superscript ∓]) = (12.7 ± 1.9 ± 1.9) x 10[superscript -6],
B (B [0 over S] → K*[superscript -] π [superscript +]) = (3.3 ± 1.1 ± 0.5) x 10[superscript -6],
where the first uncertainties are statistical and the second are systematic. In addition, an upper limit of B (B[superscript 0] → K*[superscript ±] K[superscript ∓]) < 0.4 (0.5) x 10[superscript -6] is set at 90% (95%) confidence level.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
https://doi.org/10.1088/1367-2630/16/12/123001
