${{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit \rho}^{0}}{{\mathit \pi}^{0}}$  Decay Mode Summary INSPIRE   JSON  (beta) PDGID:
M070.21
Mode (*) Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{12}$ ${{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit \rho}^{0}}{{\mathit \pi}^{0}}$ ($6.2$ $\pm0.6$) $ \times 10^{-3}$ 1448
Category: Decays involving hadronic resonances
The following data is related to the above value:
$\Gamma({{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit \rho}^{0}}{{\mathit \pi}^{0}})/\Gamma({{\mathit J / \psi}{(1S)}}$ $\rightarrow$ ${{\mathit \rho}}{{\mathit \pi}})$
$\Gamma_{12}/\Gamma_{11}$