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

Autori
Nomura, K. ; Karakatsanis, K. E.

Izvornik
Physical review. C (2469-9985) 106 (2022), 6; 064317, 10

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Collective-model

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA