| Experiment | Measurement | Reference |
|---|---|---|
| CDF | \([1.58 \pm 0.47\mbox{ (stat)} \pm 0.27\mbox{ (syst)}] \times 10^{-3}\) | PRL 76 2015 (1996) |
| Belle | \([1.28 \pm 0.07\mbox{ (stat)} \pm 0.14\mbox{ (syst)} \pm 0.02\mbox{ (jpsi br (correlated))}] \times 10^{-3}\) | PLB 538, 11 (2002) |
| BaBar | \([14.54 \pm 0.47\mbox{ (stat)} \pm 0.94\mbox{ (syst)} \pm 0.25\mbox{ (jpsi br (correlated))}] \times 10^{-4}\) | PRL 94 141801 (2005) |
| Average | \(\mathbf{[14.04 \pm 0.89\mbox{ (combined)}] \times 10^{-4}}\) |