| Experiment | Measurement | Reference |
|---|---|---|
| LHCb | \([4.3 \pm 0.5\mbox{ (stat)} \pm 0.3\mbox{ (syst)} \pm 0.4\mbox{ (fs/fd)} \pm 0.6\mbox{ (norm)}] \times 10^{-4}\) | Phys. Rev. Lett. 116, 161802 (2016) |
| Average | \(\mathbf{[4.3 \pm 0.9\mbox{ (combined)}] \times 10^{-4}}\) |