${\cal B}(B_s^0 \to \eta^\prime \eta^\prime)$

ExperimentMeasurement [10-5]$\Delta\chi^2$ReferenceComments
Average$3.24 \pm0.69$3.47$p=0.48$ (ndf=4)
PDG$3.31 \pm0.70$pdgLive
LHCb$3.24 \pm0.62 \pm0.30$ using ${\cal B}(B^+ \to \eta^\prime K^+)$0.00 Phys.Rev.Lett. 115,051801 (2015)

Further parameters used in the fit and their correlation with the average

SourceParameterCorrelation [%]Value$\Delta\chi^2$
fit${\cal B}(B^+ \to \eta^\prime K^+)$15.4$6.89 \pm0.23 \times 10^{-5}$
Parameters of interest whose average is determined from individual measurements are called fit parameters.