Abstract
The decay with is observed with a significance of using collision data corresponding to an integrated luminosity of collected by the LHCb experiment. The branching fraction of decays relative to that of the mode is measured to be . The last term is the uncertainty on the ratio .
- Received 8 March 2013
DOI:https://doi.org/10.1103/PhysRevD.87.071103
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© 2013 CERN, for the LHCb Collaboration