Experiment	Measurement	Reference
LHCb	\([0.073 \pm 0.008\mbox{ (stat)} ^{+0.005}_{-0.006}\mbox{ (syst)}] \times 10^{0}\)	PRD 89, 032001 (2014)
Average	\(\mathbf{[0.073 ^{+0.009}_{-0.010}\mbox{ (combined)}] \times 10^{0}}\)