Comment: Main result R_D\pi= (1.71\pm0.11\pm0.09\pm0.02(theo))%
| Parameter | Measurement |
|---|---|
| \({\cal{B}} ( \bar{B}^0 \to D_s^- \pi^+ )\) | \([1.99 \pm 0.26\mbox{ (stat)} \pm 0.18\mbox{ (syst)}] \times 10^{-5}\) |
| \({\cal{B}} ( \bar{B}^0 \to D_s^+ K^- )\) | \([1.91 \pm 0.24\mbox{ (stat)} \pm 0.17\mbox{ (syst)}] \times 10^{-5}\) |