Abstract
We have measured the branching fraction and photon energy spectrum for the radiative penguin process . We find , where the errors are statistical, systematic, and from theory corrections. We obtain first and second moments of the photon energy spectrum above 2.0 GeV, , and , where the errors are statistical and systematic. From the first moment, we obtain (in the modified minimal subtraction renormalization scheme, to order and ) the heavy quark effective theory parameter .
- Received 16 August 2001
DOI:https://doi.org/10.1103/PhysRevLett.87.251807
©2001 American Physical Society