EPJ Web of Conferences (Jan 2016)
The interference effects of multi-channel pion-pion scattering contributions to the final states of Ψ- and γ-meson family decays
Abstract
It is shown that the basic shape of dipion mass distributions in the twopion transitions of both charmonia and bottomonia states are explained by an unified mechanism based on the contribution of the ππ, KK̄ and ηη coupled channels including their interference.