Experiment	Measurement	Reference
LHCb	\([5.7 \pm 1.8\mbox{ (stat)} ^{+0.8}_{-0.9}\mbox{ (syst)}] \times 10^{-4}\)	LHCb-PAPER-2015-047
Average	\(\mathbf{[5.7 ^{+2.0}_{-2.0}\mbox{ (combined)}] \times 10^{-4}}\)