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

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

DOI
https://doi.org/10.1051/epjconf/201613004005
Journal volume & issue
Vol. 130
p. 04005

Abstract

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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.