pγ → ΛK⁺π⁰# Amplitude model with ampform Decay definition Particle definitions Initial state definition Generate transitions Resonance spectrum Formulate amplitude model Visualization Amplitude model with ampform-dpd Decay definition Particle definitions Initial state definition Generate transitions Formulate amplitude model Visualization Manually modelling helicity amplitudes Reaction Model implementation Intensity \(A^1 \equiv A^{K^*}\) \(A^2 \equiv A^{\Sigma^*}\) \(A^3 \equiv A^{N^*}\)