Rescattering effects in coherent pion photoproduction on the deuteron in the $Δ$ resonance region

Details Rescattering effects in coherent pion photoproduction on the deuteron in the $Δ$ resonance region Rescattering effects in coherent pion photoproduction on the deuteron in the $Δ$ resonance region

1996-06-05

arxiv.org/abs/nucl-th/9606008v1

Nucl.Phys. A609 (1996) 469-487

Physics

Nuclear Physics

Nuclear Theory

28 pages revtex including 12 postscript figures

Scientific paper

10.1016/S0375-9474(96)00277-1

Within a dynamical model, rescattering effects are studied in coherent pion photoproduction on the deuteron in the $\Delta$(1232) resonance region. The model consists of a system of coupled equations for the N$\Delta$, NN$\pi$ and NN channels. Pion rescattering leads in general to a significant reduction of total and differential cross sections resulting in a better description of experimental data. Only a few polarization observables are sensitive to rescattering effects. In particular $T_{20}$ allows an analysis of the reaction mechanism for specific kinematics. The question how rescattering affects the sensitivity to the E2 excitation of the $\Delta$ resonance is also studied.

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