Three-body continuum-discretized coupled-channel calculations for 6 He scattering from heavy nuclei

Description

ata for scattering of 6He from 197Au, 208Pb, and 209Bi targets at low energies were consistently analyzed by use of the continuum-discretized coupled-channels method and the dineutron model of the projectile. A very good description of the experimental data was obtained with the strength of the dipole couplings reduced by 50%. We find that the dipole couplings are responsible for the suppression of the Coulomb rainbow and that the quadrupole couplings must be included in the calculations in order to obtain good agreement with the elastic-scattering data at more backward angles.

Abstract

Ministerio de Ciencia y Tecnología FPA2003-05958 FPA2005-04460

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