$\dfrac{{\cal B}(B^0 \to \mu^+ \mu^-)}{{\cal B}(B_s^0 \to \mu^+ \mu^-)}$
Experiment
Measurement [10
-2
]
$\Delta\chi^2$
Reference
Comments
Average
$< 8.1$
LHCb
$< 8.1$
Phys.Rev.D
105
,012010 (2022)
Quoted upper limits are at 90% confidence level (CL), unless mentioned otherwise.