${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}$ neutrals  Decay Mode Summary INSPIRE   JSON  (beta) PDGID:
M071.12
Mode (*) Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{11}$ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}$ neutrals ($25.4$ $\pm0.5$) $ \times 10^{-2}$ S=1.6 
Category: Decays into ${{\mathit J / \psi}{(1S)}}$ and anything
The following data is related to the above value:
 ▸ expand all datablocks
$\Gamma({{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}$ neutrals$)/\Gamma({{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}})$
$\Gamma_{11}/\Gamma_{12}$
$\Gamma({{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}$ neutrals$)/\Gamma_{\text{total}}$
$\Gamma_{11}/\Gamma$