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Semiclassical theory of analysing powers for polarised heavy-ion elastic scattering

Authors
Journal
Nuclear Physics A
0375-9474
Publisher
Elsevier
Publication Date
Volume
415
Issue
2
Identifiers
DOI: 10.1016/0375-9474(84)90624-9
Disciplines
  • Philosophy

Abstract

Abstract A unified semiclassical theory of analysing powers of all ranks for polarised heavy-ion elastic scattering from a spin-zero target at energies above the Coulomb barrier is presented. Illustration is provided for by specialising to the two interactions, spin-orbit and tensor. The present approach recovers the phenomenological result, obtained by taking the difference of the nuclear overlap between unpolarised and aligned projectiles (shape-effect model), which successfully explained the structureless pattern of rank-2 observables for aligned 7Li + 58Ni at E lab ∼ 20 MeV. Deviations observed for 7Li + 12C (oscillations) are interpreted as due to interference between diffraction (positive-angle) and negative-angle scattering terms.

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