| Experiment | Measurement [10-5] | $\Delta\chi^2$ | Reference | Comments |
|---|---|---|---|---|
| Average | $1.322 \pm0.043$ | 1.78 | $p=0.62$ (ndf=3) | |
| PDG | $1.323 \pm0.043$ | pdgLive | ||
| Belle | $1.262 \pm0.031 \pm0.056$ | 0.87 | Phys.Rev.D 87,031103 (2013) | |
| Belle II | $1.39 \pm0.04 \pm0.07$ | 0.72 | Phys.Rev.D 109,012001 (2024) | |
| BaBar | $1.36 \pm0.06 \pm0.07$ | 0.17 | Phys.Rev.D 76,091102 (2007) | |
| CLEO | $1.29\,^{+0.24}_{-0.22}\,^{+0.12}_{-0.11}$ | 0.02 | Phys.Rev.D 68,052002 (2003) |