par Korennov, Sergei V.;Descouvemont, Pierre 
Référence Nuclear physics. A, 740, 3-4, page (249-267)
Publication Publié, 2004
Référence Nuclear physics. A, 740, 3-4, page (249-267)
Publication Publié, 2004
Article révisé par les pairs
| Résumé : | The hyperspherical formalism is applied in the framework of the microscopic generator-coordinate method. Three-cluster systems are described with a single generator coordinate, the hyperradius. This model is a natural extension of previous microscopic theories, and can be applied to bound states and resonances in a range of nuclei exhibiting a cluster structure. As an illustrative example, the model is applied to 6He and 6Li. Density distributions and electric dipole transition strengths are calculated, including B(E2;0+→2+) in 6He. The results are consistent with a neutron halo structure for the ground state of 6He, and with a proton-neutron halo structure of its isobaric analog state in 6Li. No 1- "soft dipole" resonance is found in 6He. © 2004 Elsevier B.V. All rights reserved. |
