Incoherent pion photoproduction on the deuteron with polarization observables II: Influence of final state rescattering

Abstract

Incoherent pion photoproduction on the deuteron is studied for photon energies from threshold up to 1 GeV with special emphasis on polarization observables. The elementary $\gamma N\to \pi N$ amplitude is taken from the MAID model. The influence of final state interactions on total and semi-exclusive cross sections $\vec{d}(\vec{\gamma },\pi )NN$ is investigated by including complete rescattering in the final $NN$- and $\pi N$-subsystems. For charged pion-production the influence of $NN$-rescattering is moderate whereas $\pi N$-rescattering is almost negligible. Much stronger influences of $NN$-rescattering are seen in neutral pion production, which is due to the elimination of a significant spurious coherent contribution in the impulse approximation. Sizeable effects are also found in some of the beam, target and beam-target asymmetries of the differential cross section.

27 pages, 27 figures

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• The NN final-state interaction in the helicity structure of $\vec{d}(\vec{\gamma },{\pi }^{-})pp$ reaction
• Final-state $NN$-rescattering in spin asymmetries of $d(\gamma ,{\pi }^{-})pp$ reaction
• ${\pi }^0$-Photoproduction on the deuteron via $\Delta$-excitation using the Lorentz Integral Transform
• Influence of $NN$-rescattering effect on the photon asymmetry of $d(\vec{\gamma },{\pi }^{-})pp$ reaction

Cited by in corpus (13)

• Isospin decomposition of $\gamma N\to N^{\ast }$ transitions within a dynamical coupled-channels model
• Extracting the photoproduction cross section off the neutron gn-->pi-p from deuteron data with FSI effects
• Incoherent pion photoproduction on the deuteron in the first resonance region
• Incoherent Pion Production in Neutrino - Deuteron Reactions
• Towards a Unified Model of Neutrino-Nucleus Reactions for Neutrino Oscillation Experiments
• Measurements of polarized photo-pion production on longitudinally polarized HD and Implications for Convergence of the GDH Integral
• On the Photoproduction Reactions $\gamma d\to \pi NN$
• A three-body calculation of incoherent ${\pi }^0$ photoproduction on a deuteron
• Helicity-dependent reaction \vec γ\vec d\to πNN and its contribution to the GDH sum rule for the deuteron
• Extraction of $\gamma n\to \pi N$ observables from deuteron-target data
• Incoherent single pion electroproduction on the deuteron with polarization effects
• Photoproduction of ${\pi }^0$-Mesons on the Nucleon and Deuteron
• Neutrino-Deuteron Reactions in the $\Delta$(1232) Region