${{\mathit \eta}_{{{c}}}{(1S)}}$ $\rightarrow$ ${{\mathit \eta}^{\,'}{(958)}}{{\mathit \pi}}{{\mathit \pi}}$  Decay Mode Summary INSPIRE   PDGID:
M026.24
Mode (*) Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{1}$ ${{\mathit \eta}_{{{c}}}{(1S)}}$ $\rightarrow$ ${{\mathit \eta}^{\,'}{(958)}}{{\mathit \pi}}{{\mathit \pi}}$ ($2.0$ $\pm0.4$) $ \times 10^{-2}$ S=1.4  1323
Category: Decays involving hadronic resonances
The following data is related to the above value:
 ▸ expand all datablocks
$\Gamma($ ${{\mathit \eta}_{{{c}}}{(1S)}}$ $\rightarrow$ ${{\mathit \eta}^{\,'}{(958)}}{{\mathit K}}{{\overline{\mathit K}}})/\Gamma($ ${{\mathit \eta}_{{{c}}}{(1S)}}$ $\rightarrow$ ${{\mathit \eta}^{\,'}{(958)}}{{\mathit \pi}}{{\mathit \pi}})$
$\Gamma_{2}/\Gamma_{1}$
$\Gamma($ ${{\mathit \eta}_{{{c}}}{(1S)}}$ $\rightarrow$ ${{\mathit \eta}^{\,'}{(958)}}{{\mathit \pi}}{{\mathit \pi}})/\Gamma_{\text{total}}{\times }$ $\Gamma($ ${{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \eta}_{{{c}}}{(1S)}})/\Gamma_{\text{total}}$
$\Gamma_{1}/\Gamma{\times }\Gamma^{{{\mathit J / \psi}{(1S)}}}_{237}/\Gamma^{{{\mathit J / \psi}{(1S)}}}$
$\Gamma($ ${{\mathit \eta}_{{{c}}}{(1S)}}$ $\rightarrow$ ${{\mathit \eta}^{\,'}{(958)}}{{\mathit \pi}}{{\mathit \pi}})$ ${\times }$ $\Gamma($ ${{\mathit \eta}_{{{c}}}{(1S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}})/\Gamma_{\text{total}}$
$\Gamma_{1}\Gamma_{59}/\Gamma$