# name
Measurement of the ratio of B+c branching fractions to J/ψπ+ and J/ψμ+νμ final states

# metadata.dc.description.abstract[].value
The first measurement that relates semileptonic and hadronic decay rates of the B + c meson is performed using proton-proton collision data corresponding to 1.0     fb − 1 of integrated luminosity collected with the LHCb detector. The measured value of the ratio of branching fractions, B ( B + c → J / ψ π + ) / B ( B + c → J / ψ μ + ν μ ) = 0.0469 ± 0.0028 ( stat ) ± 0.0046 ( syst ) , is at the lower end of available theoretical predictions.

# metadata.dc.rights[].value
cc by (c) CERN; LHCb Collaboration, 2014

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Articles publicats en revistes (Física Quàntica i Astrofísica)

# metadata.dc.subject.other[].value
Large Hadron Collider (France and Switzerland)

# metadata.dc.title[].value
Measurement of the ratio of B+c branching fractions to J/ψπ+ and J/ψμ+νμ final states