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arXiv · 1610.07898

The interference effects of multi-channel pion-pion scattering contributions to the final states of $\Psi$- and $\Upsilon$-meson family decays

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

It is shown that the basic shape of dipion mass distributions in the two-pion transitions of both charmonia and bottomonia states are explained by an unified mechanism based on the contribution of the $\pi\pi$, $K\overline{K}$ and $\eta\eta$ coupled channels including their interference.

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Yu. S. Surovtsev, P. Bydžovský, T. Gutsche, R. Kamiński, V. E. Lyubovitskij, M. Nagy. 2016-10-25. The interference effects of multi-channel pion-pion scattering contributions to the final states of $\Psi$- and $\Upsilon$-meson family decays. https://doi.org/10.1051/epjconf%2F201613004005

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