${{\boldsymbol \psi}{(4260)}}$ $\rightarrow$ ${{\boldsymbol J / \psi}}{{\boldsymbol f}_{{0}}{(980)}}$ , ${{\boldsymbol f}_{{0}}{(980)}}$ $\rightarrow$ ${{\boldsymbol \pi}^{+}}{{\boldsymbol \pi}^{-}}$ INSPIRE search

$\Gamma($ ${{\mathit \psi}{(4260)}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit f}_{{0}}{(980)}}$ , ${{\mathit f}_{{0}}{(980)}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $)/\Gamma($ ${{\mathit \psi}{(4260)}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $)$
$\Gamma_{3}/\Gamma_{2}$
M074R02