First observation of B−0→J/ψK+K− and search for B−0→J/ψϕ decays

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Back, J. J.; Craik, Daniel; Dossett, D.; Gershon, T. J.; Kreps, Michal; Latham, Thomas; Pilar, T.; Poluektov, Anton; Reid, Matthew M.; Silva Coutinho, R.; Wallace, Charlotte; Whitehead, M. (Mark); Williams, M. P.; HASH(0x5576c9e53300);
(2013)

The first observation of the B−0→J/ψK+K− decay is presented with a data sample corresponding to an integrated luminosity of 1.0 fb−1 of pp collisions at a center-of-mass energy of 7 TeV collected with the LHCb detector. The branching fraction is measured to be B(B−0→J/ψ... View more
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