Abstract
The influence of final-state
NN-rescattering on the helicity structure of the
γ
→
d
→
→
π
−
p
p
reaction in the energy range from
π-threshold up to 550 MeV has been investigated. The differential polarized cross-section difference for the parallel and antiparallel helicity states is predicted and compared with recent experimental data. It is shown that the effect of
NN-rescattering is much less important in the polarized differential cross-section difference than in the previously studied unpolarized differential cross section. Furthermore, the contribution of
γ
→
d
→
→
π
−
p
p
to the spin asymmetry of the deuteron is explicitly evaluated over the region of the
Δ
(
1232
)
-resonance with inclusion of
NN-rescattering. The effect of
NN final-state interaction is found to be much larger in the asymmetry than in the total cross section and leads to an appreciable reduction of the spin asymmetry in the
Δ-region.