Abstract
Elastic scattering cross sections for the halo nucleus 11 Be incident on 64 Zn in vicinity of Coulomb barrier are calculated using the microscopic double folding model. The parametrized densities taking into account for the halo part are folded with the effec- tive nucleon-nucleon interaction (M3Y) to yield the microscopic double folded potential. The dynamic polarization potential has been computed using the dipole strength distri- bution from the cluster model and from experiments. The calculated differential cross section with the inclusion of the imaginary part of the dynamic polarization potential to the double folded potential show a suppression in the Coulomb-nuclear interference region.
Highlights
Elastic scattering, though a well-understood phenomenon, has recently attracted considerable interest due to its role in the understanding of the properties of halo nuclei, such as 11Li and 11Be
The present analysis was carried out with the imaginary part of the dynamic polarization potential (DPP) included to the double folding (DF) potential as the real part has only a smaller influence on the elastic scattering cross section
The microscopic double folded potential and cross section for 11Be + 64Zn elastic scattering in the vicinity of Coulomb barrier are calculated within the framework of the double folding model
Summary
Though a well-understood phenomenon, has recently attracted considerable interest due to its role in the understanding of the properties of halo nuclei, such as 11Li and 11Be. Halo nuclei have unusual features: small binding energy and a large interaction cross section [1]. It is expected that elastic scattering angular distributions for halo nuclei would exhibit anomalous behaviour. This effect, due to the weakly bound nature of halo projectiles, makes the coupling to the continuum relevant and can be taken into account by introducing dynamic polarization potential in the optical potential. = 24.5 MeV has been investigated in the framework of the double folding model with and without dynamic polarization potential. The calculation for obtaining the double-folded potential, dipole strength distribution, dynamic polarization potential and cross sections are presented
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