Proton-neutron interactions in nuclei with A∼90
An extension of the cluster-(quadrupole-octupole) phonon model is proposed for nuclei with A∼90 to describe simultaneously positive- and negative-parity states, in which quadrupole as well as octupole vibrations of the88Sr core are allowed. The cluster states include particle and particle-hole core...
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todo:paper_09301151_v324_n4_p403_Heras2023-10-03T15:47:42Z Proton-neutron interactions in nuclei with A∼90 Heras, C.A. Abecasis, S.M. 21.60.-n 27.50.+e 27.60.+j An extension of the cluster-(quadrupole-octupole) phonon model is proposed for nuclei with A∼90 to describe simultaneously positive- and negative-parity states, in which quadrupole as well as octupole vibrations of the88Sr core are allowed. The cluster states include particle and particle-hole core excitations. The residual interaction is a delta-function force with spin-spin exchange plus a quadrupole-quadrupole force. The model is applied to87Sr,89Sr,88Y, and90Y nuclei. For each case, energy levels, spectroscopic factors, and electromagnetic properties are calculated and compared with experiment. © 1986 Springer-Verlag. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_09301151_v324_n4_p403_Heras |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
21.60.-n 27.50.+e 27.60.+j |
| spellingShingle |
21.60.-n 27.50.+e 27.60.+j Heras, C.A. Abecasis, S.M. Proton-neutron interactions in nuclei with A∼90 |
| topic_facet |
21.60.-n 27.50.+e 27.60.+j |
| description |
An extension of the cluster-(quadrupole-octupole) phonon model is proposed for nuclei with A∼90 to describe simultaneously positive- and negative-parity states, in which quadrupole as well as octupole vibrations of the88Sr core are allowed. The cluster states include particle and particle-hole core excitations. The residual interaction is a delta-function force with spin-spin exchange plus a quadrupole-quadrupole force. The model is applied to87Sr,89Sr,88Y, and90Y nuclei. For each case, energy levels, spectroscopic factors, and electromagnetic properties are calculated and compared with experiment. © 1986 Springer-Verlag. |
| format |
JOUR |
| author |
Heras, C.A. Abecasis, S.M. |
| author_facet |
Heras, C.A. Abecasis, S.M. |
| author_sort |
Heras, C.A. |
| title |
Proton-neutron interactions in nuclei with A∼90 |
| title_short |
Proton-neutron interactions in nuclei with A∼90 |
| title_full |
Proton-neutron interactions in nuclei with A∼90 |
| title_fullStr |
Proton-neutron interactions in nuclei with A∼90 |
| title_full_unstemmed |
Proton-neutron interactions in nuclei with A∼90 |
| title_sort |
proton-neutron interactions in nuclei with a∼90 |
| url |
http://hdl.handle.net/20.500.12110/paper_09301151_v324_n4_p403_Heras |
| work_keys_str_mv |
AT herasca protonneutroninteractionsinnucleiwitha90 AT abecasissm protonneutroninteractionsinnucleiwitha90 |
| _version_ |
1807316640609599488 |