${{\mathit \Upsilon}{(4S)}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \eta}}$   Decay Mode Summary INSPIRE   PDGID:
M047.13
Mode Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level
P(MeV/c)  
$\Gamma_{13}$ ${{\mathit \Upsilon}{(4S)}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \eta}}$ $<1.8 \times 10^{-6}$ CL= 90% 5226
The following data is related to the above value: