The interference effects of multi-channel pion-pion scattering contributions to the final states of $Ψ$- and $Υ$-meson family decays
arXiv:1610.07898 · doi:10.1051/epjconf/201613004005
Abstract
It is shown that the basic shape of dipion mass distributions in the two-pion transitions of both charmonia and bottomonia states are explained by an unified mechanism based on the contribution of the $ÏÏ$, $K\overline{K}$ and $ηη$ coupled channels including their interference.
5 pages, 3 figures, talk at the14th International Workshop on Meson Production, Properties and Interaction (Krakow, Poland, 2nd - 7th June 2016)