${{\mathit \eta}_{{{c}}}{(2S)}}$ $\rightarrow$ 2 ${{\mathit \pi}^{+}}$2 ${{\mathit \pi}^{-}}{{\mathit \eta}}$  Decay Mode Summary INSPIRE   JSON  (beta) PDGID:
M059.31
Mode Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{29}$ ${{\mathit \eta}_{{{c}}}{(2S)}}$ $\rightarrow$ 2 ${{\mathit \pi}^{+}}$2 ${{\mathit \pi}^{-}}{{\mathit \eta}}$ ($1.6$ ${}^{+0.9}_{-1.0}$) $ \times 10^{-2}$ 1733
The following data is related to the above decay:
$\Gamma({{\mathit \eta}_{{{c}}}{(2S)}}$ $\rightarrow$ 2 ${{\mathit \pi}^{+}}$2 ${{\mathit \pi}^{-}}{{\mathit \eta}})/\Gamma_{\text{total}}{\times }$ $\Gamma({{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \eta}_{{{c}}}{(2S)}})/\Gamma_{\text{total}}$
$\Gamma_{29}/\Gamma{\times }\Gamma^{{{\mathit \psi}{(2S)}}}_{200}/\Gamma^{{{\mathit \psi}{(2S)}}}$