${{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \eta}{(1405)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit f}_{{{0}}}{(980)}}{{\mathit \pi}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$  Decay Mode Summary INSPIRE   JSON PDGID:
M070.477
Mode (*) Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{287}$ ${{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \eta}{(1405)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit f}_{{{0}}}{(980)}}{{\mathit \pi}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ ($6.64$ ${}^{+1.10}_{-0.23}$) $ \times 10^{-6}$
Category: Radiative decays
The following data is related to the above decay:
$\Gamma({{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \eta}{(1405)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit f}_{{{0}}}{(980)}}{{\mathit \pi}^{0}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}})/\Gamma_{\text{total}}$
$\Gamma_{287}/\Gamma$