| Experiment | Measurement [10-5] | $\Delta\chi^2$ | Reference | Comments |
|---|---|---|---|---|
| Average | $1.93 \pm0.16$ | 0.66 | $p=0.72$ (ndf=2) | |
| PDG | $1.93 \pm0.16$ | pdgLive | ||
| BaBar | $1.89 \pm0.18 \pm0.13$ | 0.04 | Phys.Rev.Lett. 97,201802 (2006) | |
| Belle | $1.93\,^{+0.20}_{-0.19} \pm0.15$ | 0.00 | Phys.Rev.D 75,092005 (2007) | |
| CLEO | $2.64\,^{+0.96}_{-0.82} \pm0.33$ | 0.62 | Phys.Rev.Lett. 85,520 (2000) |