PRD 70 091104 (2004)
BaBar:
INSPIRE
link
Comment: Used BR( Y(4S) -> B0 B0bar ) = 0.499 +- 0.012
Parameter
Measurement
\({\cal{B}} ( \bar{B}^{0} \to J/\psi \gamma )\)
\(0.016 \times 10^{-4}\)