${\cal{B}}( B^0_s \to \eta^{\prime} X_{s \overline{s}})$
Experiment
Measurement [10
-3
]
$\Delta\chi^2$
Reference
Comments
Average
$< 1.4$
Belle
$< 1.4$
Phys.Rev.D
104
,012007 (2021)
$M(X_{ss}) < 2.4~\text{GeV}/c^2$.
Input values that appear in red are not included in the PDG average.
Quoted upper limits are at 90% confidence level (CL), unless mentioned otherwise.
