Experiment	Measurement	Reference
LHCb	\([1.62 \pm 0.22\mbox{ (stat)} \pm 0.16\mbox{ (syst)}] \times 10^{-1}\)	PLB 698, 115 (2011)
Average	\(\mathbf{[1.62 \pm 0.27\mbox{ (combined)}] \times 10^{-1}}\)