Effect of the ηη channel and interference phenomena in the two-pion transitions of charmonia and bottomonia

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

Research output: Contribution to journalArticle


The basic shape of di-pion mass spectra in the two-pion transitions of both charmonia and bottomonia states is explained by a unified mechanism based on contributions of the ππ, KK?, and ηη coupled channels including their interference. The role of the individual f0 resonances in shaping the di-pion mass distributions in the charmonia and bottomonia decays is considered.

Original languageEnglish
Article number01025
JournalEPJ Web of Conference
Publication statusPublished - 27 Mar 2017


ASJC Scopus subject areas

  • Physics and Astronomy(all)

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