${{\boldsymbol \psi}{(4260)}}$ $\rightarrow$ ${{\boldsymbol Z}_{{c}}{(3900)}^{\pm}}{{\boldsymbol \pi}^{\mp}}$ , ${{\boldsymbol Z}_{{c}}^{\pm}}$ $\rightarrow$ ${{\boldsymbol J / \psi}}{{\boldsymbol \pi}^{\pm}}$ INSPIRE search

$\Gamma($ ${{\mathit \psi}{(4260)}}$ $\rightarrow$ ${{\mathit Z}_{{c}}{(3900)}^{\pm}}{{\mathit \pi}^{\mp}}$ , ${{\mathit Z}_{{c}}^{\pm}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \pi}^{\pm}}$ $)/\Gamma($ ${{\mathit \psi}{(4260)}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $)$
$\Gamma_{4}/\Gamma_{2}$
M074R01