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izvor podataka: crosbi

Quadrupole and octupole collectivity and cluster structures in neon isotopes (CROSBI ID 250023)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Marević, Petar ; Ebran, Jean-Paul, Khan, Elias ; Nikšić, Tamara ; Vretenar, Dario Quadrupole and octupole collectivity and cluster structures in neon isotopes // Physical review. C, 97 (2018), 2; 024334-1-024334-15. doi: 10.1103/PhysRevC.97.024334

Podaci o odgovornosti

Marević, Petar ; Ebran, Jean-Paul, Khan, Elias ; Nikšić, Tamara ; Vretenar, Dario

engleski

Quadrupole and octupole collectivity and cluster structures in neon isotopes

The lowest positive- and negative-parity bands of 20Ne and neutron-rich even-even Ne isotopes are investigated using a theoretical framework based on energy density functionals. Starting from a self-consistent relativistic Hartree-Bogoliubov calculation of axially symmetric and reflection- asymmetric deformation energy surfaces, the collective symmetry-conserving states are built using projection techniques and the generator coordinate method. Overall a good agreement with the experimental excitation energies and transition rates is obtained. In particular, the model provides an accurate description of the excitation spectra and transition probabilities in 20Ne. The contribution of cluster configurations to the low-energy states is discussed, as well as the transitional character of the ground state. The analysis is extended to 22Ne and the shape-coexisting isotope 24Ne, and to the drip-line nuclei 32Ne and 34Ne. The role of valence neutrons in the formation of molecular-type bonds between clusters is discussed.

nuclear energy density functional, cluster models

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Podaci o izdanju

97 (2)

2018.

024334-1-024334-15

objavljeno

2469-9985

2469-9993

10.1103/PhysRevC.97.024334

Povezanost rada

Fizika

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