| Experiment | Measurement | Reference |
|---|
| Belle | \([3.78 ^{+0.17}_{-0.16}\mbox{ (stat)} \pm 0.33\mbox{ (syst)}] \times 10^{-4}\) | PRL 107, 091803 (2011) |
| Belle | \([3.5 \pm 0.3\mbox{ (stat)} \pm 0.5\mbox{ (syst)}] \times 10^{-4}\) | PLB 634, 155 (2006) ( (superseded) |
| BaBar | \([4.53 \pm 0.41\mbox{ (stat)} \pm 0.17\mbox{ (syst)} \pm 0.48\mbox{ (chic1 br (correlated))}] \times 10^{-4}\) | PRL 94 141801 (2005) (superseded) |
| BaBar | \([4.2 \pm 0.3\mbox{ (stat)} \pm 0.3\mbox{ (syst)}] \times 10^{-4}\) | PRL 102 132001 (2009) |
| Average | \(\mathbf{[3.96 \pm 0.28\mbox{ (combined)}] \times 10^{-4}}\) | CL=0.4551 |
