Experiment	Measurement	Reference
LHCb	\([1.48 \pm 0.34\mbox{ (stat)} \pm 0.15\mbox{ (syst)} \pm 0.12\mbox{ (fs/fd)}] \times 10^{0}\)	PLB 706 (2011) 32
Average	\(\mathbf{[1.48 \pm 0.39\mbox{ (combined)}] \times 10^{0}}\)