Abstract
We use the perturbative QCD methods of Lepage and Brodsky to calculate the rate for B¯→ππ, with an eye toward the CP-violating unitarity triangle angle α. We show that, in the mode, penguin diagrams are small and α is generally measurable but that, in the mode, the relative importance of penguin diagrams is a strong function of the CP-violating phase in the Cabibbo-Kobayashi-Maskawa mixing matrix.
- Received 11 April 1994
DOI:https://doi.org/10.1103/PhysRevD.51.6253
©1995 American Physical Society