Observation of B+→J/ψ3π+2π- and B+→ψ(2S)π+π+π- decays

The decays B+→J/ψ3π+2π-$${{\mathrm {B}} ^+} \rightarrow {{\mathrm {J}/\uppsi }} 3{{\uppi } ^+} 2{{\uppi } ^-} $$ and B+→ψ(2S)π+π+π-$${{\mathrm {B}} ^+} \rightarrow {\uppsi {(2\mathrm {S})}} {{\uppi } ^+} {{\uppi } ^+} {{\uppi } ^-} $$ are observed for the first time using a data sample correspo