Backward π+p elastic scattering from a direct channel Δδ resonance model

Elastic and radiative π+p scattering and

Elastic and radiative π+p scattering and properties of the Δ++ resonance

✍ G. López Castro; A. Mariano 📂 Article 📅 2002 🏛 Elsevier Science 🌐 English ⚖ 320 KB

We study the ++ contributions to elastic and radiative π + p scattering within an effective Lagrangian model which incorporates the , N, ρ and σ meson degrees of freedom. This model provides a description of the resonance and its interactions that respects electromagnetic gauge invariance and invari