Measurement of the branching fraction and $$C\!P$$ C P asymmetry in $${{{B} ^+}} \!\rightarrow {{J /\psi }} {{\rho } ^+} $$ B + → J / ψ ρ + decays

Abstract The branching fraction and direct $$C\!P$$ C P asymmetry of the decay $${{{B} ^+}} \!\rightarrow {{J /\psi }} {{\rho } ^+} $$ B + → J / ψ ρ + are measured using proton-proton collision data collected with the LHCb detector at centre-of-mass energies of 7 and 8 TeV, corresponding to a total...

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