| Experiment | Measurement [10-2] | $\Delta\chi^2$ | Reference | Comments |
|---|---|---|---|---|
| Average | $5.9 \pm1.4$ | 0.24 | $p=0.89$ (ndf=2) | |
| PDG | $6.3 \pm1.7$ | pdgLive | ||
| Belle | $6.2 \pm1.5 \pm1.3$ | 0.02 | Phys.Rev.Lett. 119,191802 (2017) | Multiple systematic uncertainties are added in quadrature. |
| Belle II | $4.8 \pm2.0 \pm1.8$ | 0.17 | arXiv:2411.10127 | Multiple systematic uncertainties are added in quadrature. |
| BaBar | $6.6 \pm2.1 \pm2.2$ | 0.05 | Phys.Rev.Lett. 103,211802 (2009) |