The contribution of multi-channel pion-pion scattering to the final states of ϒ-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: firstname.lastname@example.org
Published online: 26 November 2014
The effect of isoscalar S-wave multi-channel pion-pion scattering (ππ → ππ, KK̄, ηη) is considered in the analysis of data on decays – ϒ(2S) → ϒ(1S)ππ, ϒ(3S) → ϒ(1S)ππ and ϒ(3S) → ϒ(2S)ππ.
© Owned by the authors, published by EDP Sciences, 2014
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