Fine structure of proton-neutron mixed symmetry states in some N = 80 isotones
Journal Article
·
· AIP Conference Proceedings
- Institute for Nuclear Research and Nuclear Energy, 1784 Sofia (Bulgaria)
- Dipartimento di Scienze Fisiche, Universita di Napoli 'Federico II' and Istituto Nazionale di Fisica Nucleare, Monte S Angelo, Via Cintia I-80126 Napoli (Italy)
The recently measured low-energy spectra of the N = 80 isotones {sup 134}Xe, {sup 136}Ba and {sup 138}Ce have been investigated in the quasiparticle-phonon model. The energies and transition strengths are well reproduced. While the observed selection rules reflect the neutron-proton symmetry and phonon content of the excited states involved in the transitions, the splitting of the M1 strength in {sup 138}Ce is shown to be linked to a subtle interplay between pairing and single particle levels across the proton subshell closure.
- OSTI ID:
- 21255418
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1090; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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