Sigma and Pion Decays of Mixed Heavy Hybrids
We estimate the relative branching ratio of $σ$ to 2$π$ for the decay of the $Ψ'(2S)$, which we have found to be a mixed charm and hybrid charmonium meson. The external field method and correlators from a previous calculation are used to estimate these decays. We find the $σ$ to 2$π$ branching ratio for $Ψ'(2S)$ to the $J/Ψ(1S)$ decay to be 0.98, in agreement with an experiment at IHEP-BES.
hep-ph↗