https://doi.org/10.1140/epja/s10050-023-01127-z
Regular Article - Theoretical Physics
Shape evolution of sub-lead neutron-rich nuclei around the neutron shell closure
1
Variable Energy Cyclotron Centre, 1/AF Bidhannagar, 700064, Kolkata, India
2
Homi Bhabha National Institute, Anushakti Nagar, 400094, Mumbai, India
3
Department of Physics, SARBTM Government College, Koyilandy, 673307, Kozhikode, India
Received:
23
May
2023
Accepted:
12
September
2023
Published online:
30
September
2023
Shape transitions in the isotopes of transitional nuclei W, Os, and Pt are studied by using the energy density functional framework rooted in the effective nucleon-nucleon interactions. The UNEDF1 parametrization of the Skyrme energy density functionals along with the Lipkin-Nogami corrections are employed to obtain the potential energy surfaces of the even-even isotopes of these nuclei around the 
neutron shell closure. Further, to get more insight into the shape changes, we extract the nucleonic localization functions for selected isotopes. For all three isotopic chains, we observed shape transitions from triaxial deformation to oblate, then spherical ground state for shell-closed isotopes, and finally prolate deformation for highly neutron-rich isotopes. Moreover, we calculate other observables like pairing gaps, two-neutron separation energies, and reduced transition probabilities in support of our predictions based on the potential energy surfaces.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
