Experiment	Measurement	Reference
BaBar	\([5.01 \pm 0.24\mbox{ (stat)} \pm 0.55\mbox{ (syst)}] \times 10^{-1}\)	PRD 85, 052003 (2012)
Average	\(\mathbf{[5.01 \pm 0.60\mbox{ (combined)}] \times 10^{-1}}\)