${\cal{B}}( B^+ \to h^+ X^0(\rm{Familon}) )$

ExperimentMeasurement [10-5]$\Delta\chi^2$ReferenceComments
Average$< 4.9$$h = \pi, K$.
PDG$< 4.9$pdgLive
CLEO$< 4.9$Phys.Rev.Lett. 87,271801 (2001)
Quoted upper limits are at 90% confidence level (CL), unless mentioned otherwise.