Experiment | Measurement | Reference |
---|---|---|
Belle | \([3.4 \pm 0.3\mbox{ (stat)} \pm 0.6\mbox{ (syst)} \pm 0.4\mbox{ (model)}] \times 10^{-4}\) | PRD 69, 112002(2004) |
BaBar | \([3.5 \pm 0.2\mbox{ (stat)} \pm 0.2\mbox{ (syst)} \pm 0.4\mbox{ (model)}] \times 10^{-4}\) | PRD 79, 112004 (2009) |
Average | \(\mathbf{[3.5 \pm 0.5\mbox{ (combined)}] \times 10^{-4}}\) |