Amplitudes for the analysis of the decay J/ψ→ K⁺ K⁻ π⁰
Guo, Peng · Mitchell, Ryan · Shepherd, Matthew · Szczepaniak, Adam P.
Original · EN
We construct an analytical model for two channel, two-body scattering amplitudes, and then apply it in the description of the three-body J/ψ→ K+K-π⁰ decay. In the construction of the partial wave amplitudes, we combine the low energy resonance region with the Regge asymptotic behavior determined from direct two-body production. We find that resonance production in the Kπ channel in J/ψ decays seems to differ from that observed in direct Kπ production, while the mass distribution in the K K channel may be compatible.
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