Observation of the decay B+ → ψ(2S)ϕ(1020)K+ in pp collisions at √{ s} = 8TeV
The decay B+ →ψ(2S)ϕ(1020)K+ is observed for the first time using data collected from pp collisions at √{ s} = 8TeV by the CMS experiment at the LHC, corresponding to an integrated luminosity of 19.6fb-1. The branching fraction of this decay is measured, using the mode B+ →ψ(2S)K+ as normalization, to be (4.0 ± 0.4(stat) ± 0.6(syst) ± 0.2 (B)) ×10
Khachatryan, V. et al.
Fecha de publicación:
1
2017