Structure of even-even actinides in the interacting boson model and the N = 152 subshell closure
We show that a wide range of deformed actinides can be described in terms of an interacting boson model hamiltonian with three parameters, two of them [including the coefficient of the only SU(3) symmetry breaking term] remaining almost constant over the whole region. In addition to ground γ1 and β1...
| Główni autorzy: | , |
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| Format: | Journal article |
| Język: | English |
| Wydane: |
1988
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| _version_ | 1826280891658272768 |
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| author | Rikovska, J Bonatsos, D |
| author_facet | Rikovska, J Bonatsos, D |
| author_sort | Rikovska, J |
| collection | OXFORD |
| description | We show that a wide range of deformed actinides can be described in terms of an interacting boson model hamiltonian with three parameters, two of them [including the coefficient of the only SU(3) symmetry breaking term] remaining almost constant over the whole region. In addition to ground γ1 and β1 spectra, B(E2:0g+ → 2g+) values are well reproduced with no extra adjustable parameters for nuclei with 136≤N≤146, while for nuclei beyond N = 146 an effective boson number has to be considered in order to fit the observed in the B(E2:0+g → 2+g) values, which is due to the presensce of a subshell closure at N = 152. The sensitive dependence of the B(E2:0g+→2g+) values on the effective boson numbers is emphasized. β1 → ground and β1 → ground transitions are fitted by breaking the SU(3) symmetry of the E2 transition operator. © 1988. |
| first_indexed | 2024-03-07T00:20:33Z |
| format | Journal article |
| id | oxford-uuid:7c65c0da-8ef9-4517-852f-c953cd26fde7 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:20:33Z |
| publishDate | 1988 |
| record_format | dspace |
| spelling | oxford-uuid:7c65c0da-8ef9-4517-852f-c953cd26fde72022-03-26T20:56:48ZStructure of even-even actinides in the interacting boson model and the N = 152 subshell closureJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:7c65c0da-8ef9-4517-852f-c953cd26fde7EnglishSymplectic Elements at Oxford1988Rikovska, JBonatsos, DWe show that a wide range of deformed actinides can be described in terms of an interacting boson model hamiltonian with three parameters, two of them [including the coefficient of the only SU(3) symmetry breaking term] remaining almost constant over the whole region. In addition to ground γ1 and β1 spectra, B(E2:0g+ → 2g+) values are well reproduced with no extra adjustable parameters for nuclei with 136≤N≤146, while for nuclei beyond N = 146 an effective boson number has to be considered in order to fit the observed in the B(E2:0+g → 2+g) values, which is due to the presensce of a subshell closure at N = 152. The sensitive dependence of the B(E2:0g+→2g+) values on the effective boson numbers is emphasized. β1 → ground and β1 → ground transitions are fitted by breaking the SU(3) symmetry of the E2 transition operator. © 1988. |
| spellingShingle | Rikovska, J Bonatsos, D Structure of even-even actinides in the interacting boson model and the N = 152 subshell closure |
| title | Structure of even-even actinides in the interacting boson model and the N = 152 subshell closure |
| title_full | Structure of even-even actinides in the interacting boson model and the N = 152 subshell closure |
| title_fullStr | Structure of even-even actinides in the interacting boson model and the N = 152 subshell closure |
| title_full_unstemmed | Structure of even-even actinides in the interacting boson model and the N = 152 subshell closure |
| title_short | Structure of even-even actinides in the interacting boson model and the N = 152 subshell closure |
| title_sort | structure of even even actinides in the interacting boson model and the n 152 subshell closure |
| work_keys_str_mv | AT rikovskaj structureofevenevenactinidesintheinteractingbosonmodelandthen152subshellclosure AT bonatsosd structureofevenevenactinidesintheinteractingbosonmodelandthen152subshellclosure |