${\cal B}(B_s^0 \to e^+ \mu^- \mathrm{+c.c.})$

ExperimentMeasurement [10-9]$\Delta\chi^2$ReferenceComments
Average$< 5.4$
PDG$< 5.4$pdgLive
LHCb$< 5.4$JHEP 03,078 (2018)
CDF$< 200$Phys.Rev.Lett. 102,201801 (2009)
Quoted upper limits are at 90% confidence level (CL), unless mentioned otherwise.