Measurement of the ratio of Bc+ branching fractions to J/ψπ+ and J /ψμ+νμ final states

The LHCb Collaboration

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Abstract

The first measurement that relates semileptonic and hadronic decay rates of the Bc+ meson is performed using proton-proton collision data corresponding to 1.0fb-1 of integrated luminosity collected with the LHCb detector. The measured value of the ratio of branching fractions, B(Bc+→J/ψπ+)/ B(Bc+→J/ψμ+νμ)=0.0469±0.0028(stat)±0.0046(syst), is at the lower end of available theoretical predictions.
Original languageEnglish
Article number032009
Number of pages11
JournalPhysical Review D
Volume90
Issue number3
DOIs
Publication statusPublished - 2014
Externally publishedYes

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