Experiment
Measurement
Reference
BaBar
\([1.67 \pm 0.36\mbox{ (stat)} \pm 0.47\mbox{ (syst)}] \times 10^{-4}\)
PRD 77 011102 (2008)
Average
\(\mathbf{[1.67 \pm 0.59\mbox{ (combined)}] \times 10^{-4}}\)