${{\mathit \phi}{(1020)}}$ $\rightarrow$ invisible  Decay Mode Summary INSPIRE   PDGID:
M004.260
Mode Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level
P(MeV/c)  
$\Gamma_{31}$ ${{\mathit \phi}{(1020)}}$ $\rightarrow$ invisible $<1.7 \times 10^{-4}$ CL= 90%
The following data is related to the above value: