TY - JOUR AU - LHCb Collaboration (Aaij, R. et al AU - Martinez-Vidal, F. AU - Oyanguren, A. AU - Ruiz Valls, P. AU - Sanchez Mayordomo, C. PY - 2014 DA - 2014// TI - Measurement of the ratio of B-c(+) branching fractions to J/psi pi(+) and J/psi mu(+)nu(mu) final states T2 - Phys. Rev. D JO - Physical Review D SP - 032009 EP - 11pp VL - 90 IS - 3 PB - Amer Physical Soc AB - 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/psi pi(+))/B(B-c(+) -> J/psi mu(+)nu(mu)) = 0.0469 +/- 0.0028(stat) +/- 0.0046(syst), is at the lower end of available theoretical predictions. SN - 1550-7998 UR - http://arxiv.org/abs/arXiv:1407.2126 UR - https://doi.org/10.1103/PhysRevD.90.032009 DO - 10.1103/PhysRevD.90.032009 LA - English N1 - WOS:000341263800001 ID - LHCbCollaborationAaij_etal2014 ER -