| Experiment | Measurement | Reference |
|---|
| Belle | \([8.1 ^{+3.0}_{-2.7}\mbox{ (stat)} \pm 2.4\mbox{ (syst)}] \times 10^{-4}\) | PRL 91,262002 (2003) (superseded) |
| Belle | \([8.0 ^{+1.3}_{-1.2}\mbox{ (stat)} \pm 1.1\mbox{ (syst)} \pm 0.4\mbox{ (correlated systematic)}] \times 10^{-4}\) | Phys. Rev. D 91, 092011 (2015) |
| BaBar | \([1.0 \pm 0.3\mbox{ (stat)} \pm 0.1\mbox{ (syst)} ^{+0.4}_{-0.2}\mbox{ (correlated systematic)}] \times 10^{-3}\) | PRL 93,181801 (2004) |
| Average | \(\mathbf{[8.2 \pm 1.7\mbox{ (combined)}] \times 10^{-4}}\) | CL=0.6579 |
