| Experiment | Measurement [10-6] | $\Delta\chi^2$ | Reference | Comments |
|---|---|---|---|---|
| Average | $5.59 \pm0.31$ | 2.23 | $p=0.53$ (ndf=3) | The PDG uncertainty includes a scale factor. |
| PDG | $5.48 \pm0.41$ | pdgLive | ||
| Belle | $5.86 \pm0.26 \pm0.38$ | 0.34 | Phys.Rev.D 87,031103 (2013) | |
| BaBar | $5.02 \pm0.46 \pm0.29$ | 1.10 | Phys.Rev.D 76,091102 (2007) | |
| Belle II | $6.12 \pm0.53 \pm0.53$ | 0.50 | ICHEP2022 | |
| CLEO | $4.6\,^{+1.8}_{-1.6}\,^{+0.6}_{-0.7}$ | 0.28 | Phys.Rev.D 68,052002 (2003) |