Observation of the B+ → D∗−K+π+ decay

LHCb Collaboration

Research output: Contribution to journalArticlepeer-review


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 centre-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3 fb1. A clear signal is observed, and the ratio of its branching fraction to that of the B+ → D∗−π+π+ normalisation channel is measured to be BB((BB++DD∗−∗−Kπ++ππ++)) = (6.39 ± 0.27 ± 0.48) × 102, where the first uncertainty is statistical and the second is systematic. This is the first observation of the B+ → D∗−K+π+ decay.

Original languageEnglish (US)
JournalUnknown Journal
StatePublished - Apr 25 2017

ASJC Scopus subject areas

  • General

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