Experiment	Measurement	Reference
Belle	\([0.60 ^{+0.21}_{-0.18}\mbox{ (stat)} \pm 0.05\mbox{ (syst)} \pm 0.08\mbox{ (chic0 br (correlated))}]\)	PRL 88, 031802 (2002)
Average	\(\mathbf{[0.60 ^{+0.23}_{-0.20}\mbox{ (combined)}]}\)