Intermediate-energy deuteron scattering fromα-cluster nuclei

The polarization observables for elastic 400 and 700 MeV deuteron scattering from $^{12}\mathrm{C}$ and $^{16}\mathrm{O}$ nuclei have been analyzed in the framework of the multiple diffraction scattering theory and the $\ensuremath{\alpha}$-cluster model with dispersion. The rigid projectile approximation with ``effective'' $d$-$\ensuremath{\alpha}$ scattering amplitude as well as the three-body $n+p+A$ model, which uses nucleon-$A$ scattering amplitudes and the deuteron ground-state wave function with both $S$ and $D$ waves, are applied for the calculations. Both approaches are compared with each other and with the available experimental data.