Search for the transition $\chi_{b0}\rightarrow \Upsilon(1S) \gamma$

We present the results of a search for the transition $\chi_{b0}\rightarrow \Upsilon(1S) \gamma$ in the exclusive reconstruction $\Upsilon(2S)\rightarrow \chi_{b0} \gamma$; $\chi_{b0} \rightarrow \Upsilon(1S) \gamma$; $\Upsilon(1S)\rightarrow \mu\mu$. Our results use 14~pb$^{-1}$ of data collected at the $\Upsilon(2S)$ resonance with the {\it B{\footnotesize A}B {\footnotesize AR}} detector at the PEP-II $e^+e^-$ storage rings.