First observation of the decay B[subscript c][superscript +] to J/ψK[superscript +].
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Williams_First observation of the decay B.pdf
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Author(s)
Williams, Michael
Alternative Title
Springer-Verlag/SISSA
Date Issued
September 2013
Journal
Journal of High Energy Physics
Citation
Aaij, R., C. Abellan Beteta, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, et al. “First Observation of the Decay B[subscript c][superscript +] to J/ψK[superscript +].” Journal of High Energy Physics 2013, no. 9 (September 2013). © 2013 Cern for the benefit of the LHCb collaboration
Version
Final published version
Abstract
The decay B[superscript +][subscript c]→J/ψK[superscript +] is observed for the first time using a data sample, corresponding to an integrated luminosity of 1.0 fb[superscript −1], collected by the LHCb experiment in pp collisions at a centre-of-mass energy of 7 TeV. A yield of 46 ± 12 events is reported, with a significance of 5.0 standard deviations. The ratio of the branching fraction of B[superscript +][subscript c]→J/ψK[superscript +] to that of B[superscript +][subscript c]→J/ψπ[superscript +] is measured to be 0.069 ± 0.019 ± 0.005, where the first uncertainty is statistical and the second is systematic.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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Creative Commons Attribution 4.0 International License
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DOI of Published Version
https://doi.org/10.1007/jhep09(2013)075
