Study of B¯0→D+h−(h=K/π) decays at Belle
We present a measurement of the branching fractions of the Cabibbo favored ¯B0→D+π− and the Cabibbo suppressed ¯B0→D+K− decays. We find B(¯B0→D+π−)=(2.48±0.01±0.09±0.04)×10−3 and B(¯B0→D+K−)=(2.03±0.05±0.07±0.03)×10−4 decays, where the first uncertainty is statistical, the second is systematic, and the third uncertainty is due to the D+→K−π+π+ branching fraction. The ratio of branching fractions of ¯B0→D+K− and ¯B0→D+π− is measured to be RD=[8.19±0.20(stat)±0.23(syst)]×10−2. These measurements are performed using the full Belle dataset, which corresponds to 772×106B¯B pairs and use the Belle II software framework for data analysis.