| Experiment | Measurement | Reference |
|---|---|---|
| Belle | \([5.62 \pm 0.82\mbox{ (stat)} \pm 0.65\mbox{ (syst)}] \times 10^{-4}\) | PRL 95, 041803 (2005) (superseded) |
| Belle | \([3.85 \pm 0.31\mbox{ (stat)} \pm 0.38\mbox{ (syst)}] \times 10^{-4}\) | PRD 77:091101,2008 |
| BaBar | \([3.8 \pm 0.6\mbox{ (stat)} \pm 0.4\mbox{ (syst)} \pm 0.3\mbox{ (correlated syst)}] \times 10^{-4}\) | PRD 73(2006) 112004 |
| Average | \(\mathbf{[3.84 \pm 0.42\mbox{ (combined)}] \times 10^{-4}}\) | CL=0.9567 |