${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}$2( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$)  Decay Mode Summary INSPIRE   JSON  (beta) PDGID:
M071.241
Mode (*) Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{187}$ ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}$2( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$) ($4.0$ $\pm0.6$) $ \times 10^{-4}$ 1817
Category: Radiative decays
The following data is related to the above value:
$\Gamma({{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}$2( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}))/\Gamma_{\text{total}}$
$\Gamma_{187}/\Gamma$