PRD 75, 091102 (2007)

Belle: INSPIRE

ParameterMeasurement
\({\cal{B}} ( \bar{B}^0 \to D_s^- D^+ )\)\([7.5 \pm 0.2\mbox{ (stat)} \pm 0.8\mbox{ (syst)} \pm 0.8\mbox{ (brs)}] \times 10^{-3}\)
\({\cal{B}} ( \bar{B}^0 \to D_s^{-} D_s^{+} )\)\(3.6 \times 10^{-5}\)