Analysis of hadronic transitions in Υ(3S) decays

Using the CLEO II detector, we have measured the branching fractions for $\ensuremath{\Upsilon}(3S)\ensuremath{\rightarrow}\ensuremath{\pi}\ensuremath{\pi}\ensuremath{\Upsilon}(1S)$, $\ensuremath{\Upsilon}(3S)\ensuremath{\rightarrow}\ensuremath{\pi}\ensuremath{\pi}\ensuremath{\Upsilon}(2S)$, and the cascade $\ensuremath{\Upsilon}(3S)\ensuremath{\rightarrow}\ensuremath{\Upsilon}(2S)+X$, $\ensuremath{\Upsilon}(2S)\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}\ensuremath{\Upsilon}(1S)$, analyzing the exclusive mode where the daughter $\ensuremath{\Upsilon}$ state decays to a ${e}^{+}{e}^{\ensuremath{-}}$ or ${\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}$ pair, as well as the inclusive ${\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ transitions where the final $\ensuremath{\Upsilon}$ state decays into hadrons. Properties of the $\ensuremath{\pi}\ensuremath{\pi}$ system are analyzed. Searches for the cascade decay $\ensuremath{\Upsilon}(3S)\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}{h}_{b}$, ${h}_{b}\ensuremath{\rightarrow}\ensuremath{\gamma}{\ensuremath{\eta}}_{b}$ and $\ensuremath{\Upsilon}(3S)\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}{h}_{b}$ were also performed.