ExperimentMeasurementReference
BaBar\([5.92 \pm 0.85\mbox{ (stat)} \pm 0.86\mbox{ (syst)} \pm 0.22\mbox{ (psi(2S) br (correlated))}] \times 10^{-4}\)PRL 94 141801 (2005)
Average \(\mathbf{[5.92 \pm 1.23\mbox{ (combined)}] \times 10^{-4}}\)