Search for the Decay B0 -> D*0 gamma
CLEO Collaboration
Abstract
We report results of a search for the rare radiative decay B0 -> D*0 gamma. Using 9.7 million BB meson pairs collected with the CLEO detector at the Cornell Electron Storage Ring, we limit Br(B0->D*0 gamma) < 5.0 * 10-5 at 90% CL. This provides evidence that anomalous enhancement is absent in W-exchange processes and that weak radiative B decays are dominated by the short-distance b -> s gamma mechanism in the Standard Model.
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