BaBar Searches for Rare Radiative Penguin Decays of B Mesons

We present searches for rare radiative penguin decays of the $B$ meson: $B\rightarrow \rho \gamma$, $B\rightarrow \gamma\gamma$, and $B\rightarrow D^*\gamma$. Candidate events are identified from exclusively reconstructed combinations of $D^*$, $\rho$, and photon candidates. $B\rightarrow \rho \gamma$ is sensitive to the CKM-suppressed $b\rightarrow d\gamma$ quark decay process, the rate of which is directly dependent upon the CKM matrix element $|V_{td}|$. $B\rightarrow \gamma\gamma$ and $B\rightarrow D^* \gamma$ proceed through weak interaction of the constituent quarks of the $B$ meson and could receive enhancement of the decay rate from new physics at the electroweak scale. The data samples studied comprise up to 230 million $\Upsilon(4S)\rightarrow B \overline B$ decays collected with the BaBar detector at the PEP-II $e^+e^-$ storage ring.