Final-state interactions in η0 → 3π decay

@article{Oneda1964FinalstateII,
  title={Final-state interactions in $\eta$0 → 3$\pi$ decay},
  author={Sadao Oneda and Young S. Kim and L. M. Kaplan},
  journal={Il Nuovo Cimento (1955-1965)},
  year={1964},
  volume={34},
  pages={655-664}
}
SummaryIt is shown that the ϱ-mesonic final-state interaction could give rise to the observed asymmetries in the η0 → 3π decay. A dynamical model is presented which explains both the branching ratioP(η0→3π0)/P(η0→π+)+π-+π0) and the existence of a large asymmetric component in the (η0→π+)+π-+π0) decay. The model predicts a relatively small symmetric constant amplitude. It is shown that, in this model, the symmetric constant amplitude vanishes in the limit of the exact 8U3 symmetry and of a… 
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