@article{7f1548352ee04eeca858d92c56200d4e,
title = "First observation of a baryonic B+ c decay",
abstract = "A baryonic decay of the B+ c meson, B+ c → J/ψpp¯π+, is observed for the first time, with a significance of 7.3 standard deviations, in pp collision data collected with the LHCb detector and corresponding to an integrated luminosity of 3.0 fb-1 taken at center-of-mass energies of 7 and 8 TeV. With the B+ c → J/ψπ+ decay as the normalization channel, the ratio of branching fractions is measured to be B(B+ c → J/ψpp¯π+)/B(B+ c → J/ψπ+) = 0.143+0.039 -0.034(stat) ± 0.013(syst). The mass of the B+ c meson is determined as M(B+ c) = 6274.0 ± 1.8(stat) ± 0.4(syst) MeV/c2, using the B+ c → J/ψpp¯π+ channel.",
author = "{LHCb Collaboration} and R. Aaij and B. Adeva and M. Adinolfi and A. Affolder and Z. Ajaltouni and S. Akar and J. Albrecht and F. Alessio and M. Alexander and S. Ali and G. Alkhazov and {Alvarez Cartelle}, P. and Alves, {A. A.} and S. Amato and S. Amerio and Y. Amhis and L. An and L. Anderlini and J. Anderson and R. Andreassen and M. Andreotti and Andrews, {J. E.} and Appleby, {R. B.} and {Aquines Gutierrez}, O. and F. Archilli and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and M. Baalouch and S. Bachmann and Back, {J. J.} and A. Badalov and W. Baldini and Barlow, {R. J.} and C. Barschel and S. Barsuk and W. Barter and V. Batozskaya and V. Battista and A. Bay and L. Beaucourt and J. Beddow and F. Bedeschi and I. Bediaga and S. Belogurov and K. Belous and I. Belyaev and {Calvo Gomez}, M. and X. Vilasis-Cardona",
note = "Publisher Copyright: {\textcopyright} 2014 CERN, for the LHCb Collaboration.",
year = "2014",
month = oct,
day = "10",
doi = "10.1103/PhysRevLett.113.152003",
language = "English",
volume = "113",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "15",
}