EPJ Web of Conferences (Jan 2014)

The contribution of multi-channel pion-pion scattering to the final states of ϒ-meson family decays

  • Surovtsev Yu.S.,
  • Bydžovský P.,
  • Gutsche T.,
  • Kamiński R.,
  • Lyubovitskij V.E.,
  • Nagy M.

DOI
https://doi.org/10.1051/epjconf/20148105028
Journal volume & issue
Vol. 81
p. 05028

Abstract

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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.