${\cal B}(B_s^0 \to \mu^+ \mu^-)$

ExperimentMeasurement [10-9]$\Delta\chi^2$ReferenceComments
Average$3.45 \pm0.29$3.94$p=0.27$ (ndf=3)The ATLAS measurement is correlated with ${\cal{B}}(B^0 \to \mu^+ \mu^-)$. This correlation is not taken into account in our average. For more information see Ref.~\cite{CMS-PAS-BPH-20-003}.
PDG$3.01\,^{+0.36}_{-0.33}$pdgLive
CMS$3.83\,^{+0.38}_{-0.36}\,^{+0.24}_{-0.21}$0.85 ICHEP2022Multiple systematic uncertainties are added in quadrature.
LHCb$3.09\,^{+0.46}_{-0.43}\,^{+0.15}_{-0.11}$0.56 Phys.Rev.D 105,012010 (2022)
ATLAS$2.8\,^{+0.8}_{-0.7}$0.67 JHEP 04,098 (2019)
CDF$13\,^{+9}_{-7}$1.86 Phys.Rev.D 87,072003 (2013)
Input values that appear in red are not included in the PDG average.
Input values in blue correspond to yet unpublished results.