PRD 84 071106 (2011)
Belle:
INSPIRE
Parameter
Measurement
\({\cal{B}} ( B^- \to D^- e^+ e^+ )\)
\(2.6 \times 10^{-6}\)
\({\cal{B}} ( B^- \to D^- e^+ \mu^+ )\)
\(1.8 \times 10^{-6}\)
\({\cal{B}} ( B^- \to D^- \mu^+ \mu^+ )\)
\(1.0 \times 10^{-6}\)