The interference between Cabibbo-favored and Cabibbo-suppressed B→Dπ decay amplitudes provides sensitivity to the CKM angle γ. The relative size of the interfering amplitudes is an important ingredient in the determination of γ. Using branching fractions from various B→Dh decays, and the measured value for rBDK, the magnitude of the amplitude ratio of B+→D0π+ and B+→D0π+ decays is estimated to be rBDπ=0.0053±0.0007.
Kenzie, M., Martinelli, M., Tuning, N. (2016). Estimating rBDπ as an input to the determination of the CKM angle γ. PHYSICAL REVIEW D, 94(5) [10.1103/PhysRevD.94.054021].
Estimating rBDπ as an input to the determination of the CKM angle γ
Martinelli M.;
2016
Abstract
The interference between Cabibbo-favored and Cabibbo-suppressed B→Dπ decay amplitudes provides sensitivity to the CKM angle γ. The relative size of the interfering amplitudes is an important ingredient in the determination of γ. Using branching fractions from various B→Dh decays, and the measured value for rBDK, the magnitude of the amplitude ratio of B+→D0π+ and B+→D0π+ decays is estimated to be rBDπ=0.0053±0.0007.
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