Comment: Already included in PDG 2004. Used BR( Y(4S) -> B+ B- ) = BR( Y(4S) -> B0 B0bar ) = 0.5
| Parameter | Measurement |
|---|---|
| \({\cal{B}} ( \bar{B}^0 \to J/\psi(1S) \pi^+ \pi^- )\) | \([4.6 \pm 0.7\mbox{ (stat)} \pm 0.6\mbox{ (syst)}] \times 10^{-5}\) (superseded) |
| \({\cal{B}} ( \bar{B}^0 \to J/\psi(1S) \rho^0(770) )\) | \([1.6 \pm 0.6\mbox{ (stat)} \pm 0.4\mbox{ (syst)}] \times 10^{-5}\) (superseded) |