Collective-model description of shape coexistence and intruder states in cadmium isotopes based on a relativistic energy density functional

Scientific paper - Original scientific paper

• Author: Kosuke Nomura
• Author: K. E. Karakatsanis
• Author's institution: University of Zagreb; Faculty of Science; (Department of Physics)
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Physics

Abstract (english)

Low-energy structure of even-even 108−116Cd isotopes is analyzed using a collective model that is based on the nuclear density functional theory. Spectroscopic properties are computed by solving the triaxial quadrupole collective Hamiltonian, with parameters determined by the constrained self- consistent mean-field calculations within the relativistic Hartree-Bogoliubov method employing a universal energy density functional and a pairing force. The collective Hamiltonian reproduces the observed quadrupole phonon states of vibrational character, which are based on the moderately deformed equilibrium minimum in the mean-field potential energy surface. In addition, the calculation yields a low-lying excited 0+ band and aγ-vibrational band that are associated with a deformed local minimum close in energy to the ground state, consistently with the empirical interpretation of these bands as intruder bands. Observed energy spectra, B(E2), and ρ2(E0) values are, in general, reproduced reasonably well.

• Keywords (english): collective-model
• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Published version
• Journal title: Physical Review C
• Numbering: vol. 106, no. 6, 064317
• p-ISSN: 2469-9985
• e-ISSN: 2469-9993
• DOI: https://doi.org/10.1103/PhysRevC.106.064317
• URN:NBN: urn:nbn:hr:217:005875
• Publication: 2022-12-15
• Project: Number: TTP-2018-07-3554; Title (croatian): Exotic Nuclear Structure and Dynamics; Title (english): Exotic Nuclear Structure and Dynamics; Acronym: ExoNSD; Leader: Kosuke Nomura; Jurisdiction: Croatia; Funding stream: TTP
• Document URL: https://link.aps.org/doi/10.1103/PhysRevC.106.064317
• Type of resource: Text
• Access conditions: Open access
• Public note: © 2022 American Physical Society. Received 20 September 2022; Accepted 1 December 2022; Published 15 December 2022.
• Created on: 2023-08-16 13:00:18