Quadrupole collectivity of neutron-rich neon isotopesR.R. Rodríguez-Guzmán1, J.L. Egido2 and L.M. Robledo2
1 Institut für Theoretische Physik der Universität Tübingen, Auf der Morgenstelle 14, D-72076 Tübingen, Germany
2 Departamento de Física Teórica C-XI, Universidad Autónoma de Madrid, 28049-Madrid, Spain
(Received: 19 Novemeber 2002 / Revised version: 23 January 2003 / Published online: 8 April 2003)
The Angular Momentum Projected Generator Coordinate Method, with the quadrupole moment as collective coordinate and the Gogny force (D1S) as the effective interaction, is used to describe the properties of the ground state and low-lying excited states of the even-even neon isotopes Ne, that is, from the stability valley up to the drip line. It is found that the ground state of the N=20 nucleus 30Ne is deformed but to a lesser extent than the N=20 isotope of the magnesium. In the calculations, the isotope 32Ne is at the drip line in good agreement with other theoretical predictions. On the other hand, rather good agreement with experimental data for many observables is obtained.
21.60.Jz - Hartree-Fock and random-phase approximation.
21.60.-n - Nuclear-structure models and methods.
21.10.Re - Collective levels.
21.10.Ky - Electromagnetic moments.
© Società Italiana di Fisica, Springer-Verlag 2003