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Journal articles
Shape coexistence in neutron-deficient Kr isotopes: Constraints on the single-particle spectrum of self-consistent mean-field models from collective excitations
Abstract : We discuss results obtained in the study of shape coexistence in the neutron-deficient $^{72−78}$Kr isotopes. The method that we used is based on the mixing of axial mean-field configurations after their projection on particle-number and angular-momentum. The calculations are performed with a Skyrme interaction and a density-dependent pairing interaction. While our calculation reproduces qualitatively and quantitatively many of the global features of these nuclei, such as coexistence of prolate and oblate shapes, their strong mixing at low angular momentum, and the deformation of collective bands, the ordering of our calculated low-lying levels is at variance with experiment. We analyse the role of the single-particle spectrum of the underlying mean-field for the spectrum of collective excitations.
Cited literature [63 references]
https://hal-cea.archives-ouvertes.fr/cea-02927998
Contributor : Bruno Savelli Connect in order to contact the contributor
Submitted on : Wednesday, September 2, 2020 - 10:52:50 AM
Last modification on : Tuesday, November 30, 2021 - 8:32:05 AM
Long-term archiving on: : Wednesday, December 2, 2020 - 4:02:53 PM
Contributor : Bruno Savelli Connect in order to contact the contributor
Submitted on : Wednesday, September 2, 2020 - 10:52:50 AM
Last modification on : Tuesday, November 30, 2021 - 8:32:05 AM
Long-term archiving on: : Wednesday, December 2, 2020 - 4:02:53 PM
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