Study of shape transitions in $N\sim90$ isotopes with beyond mean field calculations

Tomás R. Rodríguez; J. L. Egido

doi:10.1063/1.3087058

paper

Study of shape transitions in $N \sim 90$ isotopes with beyond mean field calculations

arXiv:0811.3898 · doi:10.1063/1.3087058

Abstract

We study the spherical to prolate-deformed shape transition in $^{144 - 158}$ Sm and $^{146 - 160}$ Gd isotopes with modern calculations beyond the mean field with the Gogny D1S force. We compare the results with the shape-phase transition predicted by the collective hamiltonian model and with the experimental data. Our calculations do not support the existence of a first order phase transition in these isotopic chains in the viewpoint of the Bohr hamiltonian neither the interpretation of the nuclei N=90 as critical points.

Proceeding of the XIII Conference on Capture Gamma-ray Spectroscopy and Related Topics, Cologne, 2008

Study of shape transitions in N∼90 isotopes with beyond mean field calculations

Abstract

Study of shape transitions in $N \sim 90$ isotopes with beyond mean field calculations