Experiment
Measurement
Reference
BaBar
\([1.91 \pm 0.36\mbox{ (stat)} \pm 0.29\mbox{ (syst)}] \times 10^{-4}\)
PRD 85, 092017 (2012)
Average
\(\mathbf{[1.91 \pm 0.46\mbox{ (combined)}] \times 10^{-4}}\)
