Scalar mesons in $η'\to3π^{0},π^{0}π^{+}π^{-}$ decays

Details Scalar mesons in $η'\to3π^{0},π^{0}π^{+}π^{-}$ decays Scalar mesons in $η'\to3π^{0},π^{0}π^{+}π^{-}$ decays

2010-02-08

arxiv.org/abs/1002.1535v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 6 figures

Scientific paper

The decays $\eta'\to3\pi^{0}$ and $\pi^{0}\pi^{+}\pi^{-}$ were consider in isobar model approach. Branching ratio and Dalitz-plot shape of the decay $\eta'\to3\pi^{0}$ can be explain by $a0$- and $\sigma$-meson contributions. The $\sigma$ meson term is needed for the Dalitz-plot distribution reconstruction. The branching ratio of the decay $\eta'\to \pi^{0}\pi^{+}\pi^{-}$ can be calculated in the same isobar framework. The prediction for the Dalitz-plot of this decay is shown which strongly dependents from model parameters.

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