ExperimentMeasurementReference
BaBar\([2.88 \pm 0.21\mbox{ (stat)} \pm 0.28\mbox{ (syst)} \pm 0.14\mbox{ (correlated syst)}] \times 10^{-3}\)PRD 74 (2006) 012001
Average \(\mathbf{[2.88 \pm 0.38\mbox{ (combined)}] \times 10^{-3}}\)