Amplitudes for the analysis of the decay $J/ψ\to K^{+} K^{-} π^0$

Details Amplitudes for the analysis of the decay $J/ψ\to K^{+} K^{-} π^0$ Amplitudes for the analysis of the decay $J/ψ\to K^{+} K^{-} π^0$

2011-12-14

arxiv.org/abs/1112.3284v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

We construct an analytical model for two channel, two-body scattering amplitudes, and then apply it in the description of the three-body $J/\psi \to K^+K^-\pi^0$ 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 $K\pi$ channel in $J/\psi$ decays seems to differ from that observed in direct $K\pi$ production, while the mass distribution in the $K\bar K$ channel may be compatible.

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