Amplitudes for the analysis of the decay $J/ψ→K^+K^−π^0$

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Date
2012
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American Physical Society
Abstract
We construct an analytical model for two-channel, two-body scattering amplitudes, and then apply it in the description of the three-body $J/ψ→K^+K^−π^0$ 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 $Kπ$ channel in $J/ψ$ decays seems to differ from that observed in direct $Kπ$ production, while the mass distribution in the $K\overline{K}$ channel may be compatible.
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Guo, P., Mitchell, R., Shepherd, M., & Szczepaniak, A. P. (2012). Amplitudes for the analysis of the decay $J/ψ→K^+K^−π^0$. Physical Review D - Particles, Fields, Gravitation and Cosmology, 85(5), 056003. http://dx.doi.org/10.1103/PhysRevD.85.056003
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© 2012 American Physical Society
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