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Observation of the B+→D*-K+π+ decay
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Published Web Location
http://doi.org/10.1103/PhysRevD.96.011101No data is associated with this publication.
Abstract
The B+→D*-K+π+ decay potentially provides an excellent way to investigate charm meson spectroscopy. The decay is searched for in a sample of proton-proton collision data collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3 fb-1. A clear signal is observed, and the ratio of its branching fraction to that of the B+→D*-π+π+ normalization channel is measured to be B(B+→D*-K+π+)/B(B+→D*-π+π+)=(6.39±0.27±0.48)×10-2, where the first uncertainty is statistical and the second is systematic. This is the first observation of the B+→D*-K+π+ decay.
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