| Experiment | Measurement [10-3] | $\Delta\chi^2$ | Reference | Comments |
|---|---|---|---|---|
| Average | $2.37 \pm0.36$ | |||
| LHCb | $2.37 \pm0.31\,^{+0.20}_{-0.17}$ | 0.00 | Phys.Rev.Lett. 111,181801 (2013) | In the pseudorapidity range $2 < \eta(B) < 5$. Multiple systematic uncertainties are added in quadrature. |