${{\boldsymbol \psi}{(4260)}}$ $\rightarrow$ ${{\boldsymbol D}}{{\overline{\boldsymbol D}}}$ INSPIRE search

$\Gamma($ ${{\mathit \psi}{(4260)}}$ $\rightarrow$ ${{\mathit D}}{{\overline{\mathit D}}}$ $)/\Gamma($ ${{\mathit \psi}{(4260)}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $)$
$\Gamma_{22}/\Gamma_{2}$
M074R2