| Experiment | Measurement [10-6] | $\Delta\chi^2$ | Reference | Comments |
|---|---|---|---|---|
| Average | $6.9 \pm1.0$ | 8.22 | $p=0.016$ (ndf=2) | The PDG uncertainty includes a scale factor. |
| PDG | $7.0\,^{+2.9}_{-2.8}$ | pdgLive | ||
| BaBar | $9.9 \pm1.2 \pm0.8$ | 4.23 | Phys.Rev.D 78,011107 (2008) | |
| Belle | $4.1\,^{+1.4}_{-1.3} \pm0.4$ | 3.79 | Phys.Rev.D 75,092005 (2007) | |
| CLEO | $4.8\,^{+5.2}_{-3.8}$ | 0.20 | Phys.Rev.Lett. 85,520 (2000) |