| Experiment | Measurement | Reference |
|---|---|---|
| LHCb | \([2.41 \pm 0.30\mbox{ (stat)} \pm 0.33\mbox{ (syst)}]\) | PRL 108, 251802 (2012) |
| CMS | \([2.55 \pm 0.80\mbox{ (stat)} \pm 0.33\mbox{ (syst)} ^{+0.04}_{-0.01}\mbox{ (tau_Bc)}]\) | JHEP 01 (2015) 063 |
| Average | \(\mathbf{[2.44 \pm 0.40\mbox{ (combined)}] \times 10^{0}}\) | CL=0.8857 |