https://doi.org/10.1051/epjconf/201613004005
The interference effects of multi-channel pion-pion scattering contributions to the final states of Ψ- and γ-meson family decays
1 Bogoliubov Lab of Theoretical Physics, JINR, 141 980, Dubna, Russia
2 Nuclear Physics Institute, AS CR, 25068, Řež/Prague, Czech Republic
3 Institut für Theoretische Physik, Universität Tübingen, D–72076, Tübingen, Germany
4 Institute of Nuclear Physics, PAN, Krakow, 31342, Poland
5 Department of Physics, Tomsk State University, 634050, Tomsk, Russia
6 Mathematical Physics Department, Tomsk Polytechnic University, Lenin ave. 30, 634050, Tomsk, Russia
7 Institute of Physics, SAS,, Bratislava, 84511, Slovak Republic
a e-mail: surovcev@theor.jinr.ru
Published online: 29 November 2016
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.
© The Authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
