${{\mathit \psi}{(4660)}}$ $\rightarrow$ ${{\mathit \psi}{(2S)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ INSPIRE search

$\Gamma($ ${{\mathit \psi}{(4660)}}$ $\rightarrow$ ${{\mathit D}^{0}}{{\mathit D}^{*-}}{{\mathit \pi}^{+}})/\Gamma($ ${{\mathit \psi}{(4660)}}$ $\rightarrow$ ${{\mathit \psi}{(2S)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}})$
$\Gamma_{4}/\Gamma_{2}$
M189R01
$\Gamma($ ${{\mathit \psi}{(4660)}}$ $\rightarrow$ ${{\mathit \psi}{(2S)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}})$ ${\times }$ $\Gamma($ ${{\mathit \psi}{(4660)}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}})/\Gamma_{\text{total}}$
$\Gamma_{2}\Gamma_{1}/\Gamma$
M189G1