${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit \eta}^{\,'}}$  Decay Mode Summary INSPIRE   JSON  (beta) PDGID:
M071.311
Mode (*) Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{224}$ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit \eta}^{\,'}}$ ($1.90$ $\pm0.26$) $ \times 10^{-6}$ 1719
Category: Radiative decays
The following data is related to the above value:
$\Gamma({{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit \eta}^{\,'}})/\Gamma_{\text{total}}$
$\Gamma_{224}/\Gamma$