Experiment	Measurement	Reference
BaBar	\([11.7 \pm 2.3\mbox{ (stat)} \pm 2.4\mbox{ (syst)}] \times 10^{-2}\)	PRD 78, 112003 (2008)
Average	\(\mathbf{[11.7 \pm 3.3\mbox{ (combined)}] \times 10^{-2}}\)