A coupled-channel framework is developed and fitted to BESIII data on vector charmonium-like states in the 4.1-4.6 GeV range, concluding that coupled-channel effects with dynamically generated poles explain the line shapes.
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Theoretical calculation of ψ(3686) → Λ Λ̄ η decay shows Λ(1670) peaks in ηΛ and ηΛ̄ distributions using two SU(3) flavor structures and final-state interactions, with one free parameter fitting data and supporting a molecular picture for the resonance.
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Vector charmonium(-like) states in the energy range of 4.1-4.6 GeV
A coupled-channel framework is developed and fitted to BESIII data on vector charmonium-like states in the 4.1-4.6 GeV range, concluding that coupled-channel effects with dynamically generated poles explain the line shapes.
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$\Lambda(1670)$ production in the $\psi(3686) \to \Lambda \bar \Lambda \eta$ reaction
Theoretical calculation of ψ(3686) → Λ Λ̄ η decay shows Λ(1670) peaks in ηΛ and ηΛ̄ distributions using two SU(3) flavor structures and final-state interactions, with one free parameter fitting data and supporting a molecular picture for the resonance.