| Experiment | Measurement | Reference |
|---|---|---|
| LHCb | \([3.0 \pm 0.6\mbox{ (stat)} \pm 0.4\mbox{ (syst)}] \times 10^{0}\) | LHCb |
| LHCb | \([2.41 \pm 0.30\mbox{ (stat)} \pm 0.33\mbox{ (syst)}]\) | PRL 108, 251802 (2012) |
| CMS | \([2.43 \pm 0.76\mbox{ (stat)} ^{+0.46}_{-0.44}\mbox{ (syst)}]\) | CMS-PAS-BPH-12-011 |
| Average | \(\mathbf{[2.55 \pm 0.35\mbox{ (combined)}] \times 10^{0}}\) |