Influence of $NN$-rescattering effect on the photon asymmetry of $d(\vec{\gamma },{\pi }^{-})pp$ reaction

Abstract

The influence of final-state $NN$-rescattering on the beam asymmetry $\Sigma$ for linearly polarized photons in ${\pi }^{-}$ photoproduction on the deuteron in the energy range from $\pi$-threshold through the $\Delta$(1232)-resonance has been investigated. Numerical results for this spin observable are predicted and compared with recent experimental data from the LEGS Spin collaboration. Final-state $NN$-rescattering is found to be quite important and leads to a better agreement with existing experimental data. Furthermore, the differences with other theoretical models have been discussed.

10 pages, 5 ps figures, accepted for publication in Physics Letters B, 2005

References in corpus (7)

• Electromagnetic Meson Production in the Nucleon Resonance Region
• Study of Non-Strange Baryon Resonances with Meson Photoproduction
• Influence of final state interaction on incoherent pion photoproduction on the deuteron in the region of the Delta-resonance
• Single-spin asymmetries of $d(\gamma ,\pi )NN$ in the first resonance region
• The NN final-state interaction in the helicity structure of $\vec{d}(\vec{\gamma },{\pi }^{-})pp$ reaction
• Spin observables for pion photoproduction on the deuteron in the $\Delta$(1232)-resonance region
• Polarization observables of the gamma d --> PiNN reaction in the Delta(1232)-resonance region

Cited by in corpus (4)

• Incoherent pion photoproduction on the deuteron with polarization observables II: Influence of final state rescattering
• Incoherent pion photoproduction on the deuteron in the first resonance region
• Incoherent pion photoproduction on the deuteron with polarization observables I: Formal expressions
• Final-state $NN$-rescattering in spin asymmetries of $d(\gamma ,{\pi }^{-})pp$ reaction