Comparison of higher order deformations in several s-d shell nuclei obtained through Schrödinger or Dirac coupled-channel analysis of 800 MeV polarized protons inelastic scattering experiments

International audienceCross-sections and analyzing powers data obtained by inelastic scattering of 800 MeV polarized protons from severals-d shell nuclei have been analyzed using the Dirac coupled-channel (CC) formalism putting emphasis in the precise determination of higher order deformation in these nuclei. The superiority of the Dirac formalism compared to the classical Schrödinger CC calculations in the analysis of these data was once more clearly established. The higher order deformations obtained through these calculations are compared to those obtained using the classical Schrödinger equation