Abstract
We investigate the properties of the excited spectra of the even-even isotopes of krypton using a Generalised Bohr Hamiltonian with three different Skyrme functionals. In particular, we investigate the evolution of the low-lying and states and their associated electromagnetic transitions. The model reproduces quite nicely the energy trends apart from 88Kr, where none of the interactions used here are able to grasp a sudden change in the energy spectrum. Additionally, we explore the neutron deficient region 72–76Kr which is a proposed region for shape coexistence. We observe that the model can reproduce the structure of the experimental spectrum of 72Kr exceedingly well.
Highlights
Nuclear Energy Density Functional (NEDF) is the tool of choice to describe properties of atomic nuclei from light to heavy and from proton to neutron drip-lines [1]
By using 3 different Skyrme functionals, we have observed that the UNEDF0 and UNEDF1 functionals are able to provide, on average, quite a good description of both energy states and electromagnetic transitions
We have studied in more detail 3 neutron deficient Kr isotopes, namely 72−76Kr
Summary
Nuclear Energy Density Functional (NEDF) is the tool of choice to describe properties of atomic nuclei from light to heavy and from proton to neutron drip-lines [1]. We investigate the properties of the excited spectra of the even-even isotopes of krypton using a Generalised Bohr Hamiltonian with three different Skyrme functionals. The current functionals have reached quite high accuracy in reproducing both ground state properties such as masses [2, 3], as well as some features of the excited spectrum [4, 5, 6].
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