${{\mathit \eta}_{{{c}}}{(2S)}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \omega}}$  Decay Mode Summary INSPIRE   JSON  (beta) PDGID:
M059.33
Mode Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{21}$ ${{\mathit \eta}_{{{c}}}{(2S)}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \omega}}$ $<1.9 \times 10^{-3}$ CL= 90% 1642
The following data is related to the above decay:
$\Gamma({{\mathit \eta}_{{{c}}}{(2S)}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \omega}})/\Gamma_{\text{total}}{\times }$ $\Gamma({{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \eta}_{{{c}}}{(2S)}})/\Gamma_{\text{total}}$
$\Gamma_{21}/\Gamma{\times }\Gamma^{{{\mathit \psi}{(2S)}}}_{200}/\Gamma^{{{\mathit \psi}{(2S)}}}$