${{\mathit \eta}_{{{c}}}{(1S)}}$ $\rightarrow$ 2 ${{\mathit \pi}^{+}}$2 ${{\mathit \pi}^{-}}{{\mathit \eta}}$  Decay Mode Summary INSPIRE   JSON PDGID:
M026.99
Mode (*) Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{49}$ ${{\mathit \eta}_{{{c}}}{(1S)}}$ $\rightarrow$ 2 ${{\mathit \pi}^{+}}$2 ${{\mathit \pi}^{-}}{{\mathit \eta}}$ 1386
Category: Decays into stable hadrons
The following data is related to the above decay:
$\Gamma({{\mathit \eta}_{{{c}}}{(1S)}}$ $\rightarrow$ 2 ${{\mathit \pi}^{+}}$2 ${{\mathit \pi}^{-}}{{\mathit \eta}})/\Gamma_{\text{total}}{\times }$ $\Gamma({{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \eta}_{{{c}}}{(1S)}})/\Gamma_{\text{total}}$
$\Gamma_{49}/\Gamma{\times }\Gamma^{{{\mathit \psi}{(2S)}}}_{199}/\Gamma^{{{\mathit \psi}{(2S)}}}$