BaBar (unpublished): INSPIRE link
Comment: Used charged to neutral B production ratio at Y(4S) 1.006 +- 0.048
| Parameter | Measurement |
|---|---|
| \({{\cal{B}} ( B^{-} \to K^{-} X(3872) )\times {\cal{B}} ( X(3872) \to J/\psi \pi^{+} \pi^{-} )}\) | \([10.1 \pm 2.5\mbox{ (stat)} \pm 1.0\mbox{ (syst)}] \times 10^{-6}\) (superseded) |
| \({{\cal{B}} ( \bar{B}^{0} \to X(3872) \bar{K}^{0} )\times {\cal{B}} ( X(3872) \to J/\psi \pi^{+} \pi^{-} )}\) | \([5.1 \pm 2.8\mbox{ (stat)} \pm 0.7\mbox{ (syst)}] \times 10^{-6}\) (superseded) |
| \(\frac{{\cal{B}} ( \bar{B}^{0} \to X(3872) \bar{K}^{0} )}{{\cal{B}} ( B^{-} \to X(3872) K^{-} )}\) | \([0.50 \pm 0.30\mbox{ (stat)} \pm 0.05\mbox{ (syst)}] \times 10^{0}\) (superseded) |
| \({{\cal{B}} ( B^{-} \to Y(4260) K^{-} )\times {\cal{B}} ( Y(4260) \to J/\psi \pi^{+} \pi^{-} )}\) | \([2.0 \pm 0.7\mbox{ (stat)} \pm 0.2\mbox{ (syst)}] \times 10^{-5}\) |