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The branching fractions of the $\Upsilon(1S)$ inclusive decays into finalstates with a $J/\psi$ or a $\psi(2S)$ are measured with improved precision tobe $\BR(\Upsilon(1S)\to J/\psi + {\rm anything})=(5.25\pm0.13(\mathrm{stat.})\pm 0.25(\mathrm{syst.}))\times 10^{-4}$ and$\BR(\Upsilon(1S)\to \psi(2S) + {\rm anything})=(1.23\pm0.17(\mathrm{stat.})\pm 0.11(\mathrm{syst.}))\times 10^{-4}$. The first searchfor $\Upsilon(1S)$ decays into $XYZ$ states that decay into a $J/\psi$ or a$\psi(2S)$ plus one or two charged tracks yields no significant signals for$XYZ$ states in any of the examined decay modes, and upper limits on theirproduction rates in $\Upsilon(1S)$ inclusive decays are determined.

Search for $XYZ$ states in $\Upsilon(1S)$ inclusive decays