@Article{LHCbCollaborationAaij_etal2013,
author="LHCb Collaboration (Aaij, R. et al
and Oyanguren, A.
and Ruiz Valls, P.",
title="Observation of B-c(+) -> J/ psi D-s(+) and B-c(+) -> J/ psi D-s*(+) decays",
journal="Physical Review D",
year="2013",
publisher="Amer Physical Soc",
volume="87",
number="11",
pages="112012 - 10pp",
abstract="The decays B-c(+) -> J/ psi D-s(+) and B-c(+) -> J/ psi D-s*(+) are observed for the first time using a dataset, corresponding to an integrated luminosity of 3 fb(-1), collected by the LHCb experiment in proton-proton collisions at center-of-mass energies of root s = 7 and 8 TeV. The statistical significance for both signals is in excess of 9 standard deviations. The following ratios of branching fractions are measured to be {\textquoteright}B(B-c(+) -> J/ psi D-s(+))/B(B-c(+) -> J/ psi pi(+)) = 2.90 +/- 0.57 +/- 0.24, B(B-c(+) -> J/psi D-s*(+))/B(B-c(+) -> J/ psi D-s(+)) = 2.37 +/- 0.56 +/- 0.10, where the first uncertainties are statistical and the second systematic. The mass of the B-c(+) meson is measured to be m(Bc+) = 6276.28 +/- 1.44(stat) +/- 0.36(syst) MeV/c(2), using the B-c(+) -> J/ psi D-s(+) decay mode.",
optnote="WOS:000321070100001",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=1483), last updated on Thu, 01 Aug 2013 14:08:38 +0000",
issn="1550-7998",
doi="10.1103/PhysRevD.87.112012",
opturl="http://arxiv.org/abs/arXiv:1304.4530",
opturl="https://doi.org/10.1103/PhysRevD.87.112012",
archivePrefix="arXiv",
eprint="arXiv:1304.4530",
language="English"
}