Microscopic mean field approximation and beyond with the Gogny force

¹ CEA, DAM, DIF, F-91297 Arpajon, France
² Institut d’Astronomie et d’Astrophysique, CP-226, Université Libre de Bruxelles, 1050 Brussels, Belgium

^a e-mail: sophie.peru-desenfants@cea.fr

Published online: 20 March 2014

Abstract

Fully consistent axially-symmetric-deformed quasiparticle random phase approximation calculations have been performed with the D1S Gogny force. A brief review on the main results obtained in this approach is presented. After a reminder on the method and on the first results concerning giant resonances in deformed Mg and Si isotopes, the multipole responses up to octupole in the deformed and heavy nucleus ²³⁸U are discussed. In order to analyse soft dipole modes in exotic nuclei, the dipole responses have been studied in Ne isotopes and in N=16 isotopes, for which results are presented. In these nuclei, the QRPA results on the low lying 2⁺ states are compared to the 5-Dimensional Collective Hamiltonian ones.