PT Journal
AU LHCb Collaboration (Aaij, Rea
   Martinez-Vidal, F
   Oyanguren, A
   Ruiz Valls, P
TI Evidence for the decay B-c(+) -> J/psi 3 pi(+)2 pi(-)
SO Journal of High Energy Physics
JI J. High Energy Phys.
PY 2014
BP 148
EP 17pp
VL 05
IS 5
DI 10.1007/JHEP05(2014)148
LA English
DE Hadron-Hadron Scattering; QCD; Branching fraction; B physics; Flavor physics
AB Evidence is presented for the decay B-c(+) -> J/psi 3 pi(+)2 pi(-) using proton-proton collision data, corresponding to an integrated luminosity of 3 fb(-1), collected with the LHCb detector. A signal yield of 32 +/- 8 decays is found with a significance of 4.5 standard deviations. The ratio of the branching fraction of the B-c(+) -> J/psi 3 pi(+)2 pi(-) decay to that of the B-c(+) -> J/psi pi(+) decay is measured to be B(B-c(+) -> J/psi 3 pi(+)2 pi(-))/B(B-c(+) -> J/psi pi(+)) = 1.74 +/- 0.44 +/- 0.24, where the first uncertainty is statistical and the second is systematic.
ER