${\cal B}(B^+ \to \mu^+ \nu_{\mu})$
Experiment
Measurement [10
-7
]
$\Delta\chi^2$
Reference
Comments
Average
$< 8.6$
PDG
$< 8.6$
pdgLive
Belle
$< 8.6$
Phys.Rev.D
101
,032007 (2020)
BaBar
$< 10$
Phys.Rev.D
79
,091101 (2009)
Belle
$< 10.7$
Phys.Rev.Lett.
121
,031801 (2018)
Quoted upper limits are at 90% confidence level (CL), unless mentioned otherwise.