High spin structure of the neutron-rich nuclei {sup 137}I and {sup 139}Cs
Journal Article
·
· Physical Review. C, Nuclear Physics
- Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235 (United States)
- Dipartimento di Scienze Fisiche, Complesso Universitario di Monte S. Angelo, Via Cintia, I-80126 Napoli (Italy)
- Istituto Nazionale di Fisica Nucleare, Complesso Universitario di Monte S. Angelo, Via Cintia, I-80126 Napoli (Italy)
- Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
- Flerov Laboratory of Nuclear Reactions, JINR, Dubna (Russian Federation)
- Department of Physics, Tsinghua University, Beijing 100084 (China)
- Department of Physics and Astronomy, Mississippi State University, Mississippi State, Mississippi 39762 (United States)
High spin excited states in the neutron-rich nuclei {sup 137}I and {sup 139}Cs were investigated from a study of the prompt {gamma} rays emitted in the spontaneous fission of {sup 252}Cf with the Gammasphere detector array. Ten new excited levels with 18 new deexciting transitions were observed in {sup 139}Cs and the level scheme of {sup 139}Cs was extended up to 4670 keV. Spins and parities of levels in {sup 139}Cs were firmly assigned up to 25/2{sup +}. Three new levels were found in {sup 137}I. Shell model calculations were performed to interpret the experimental results. A good agreement between theory and experiment in both nuclei was found.
- OSTI ID:
- 21293927
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 80, Issue 4; Other Information: DOI: 10.1103/PhysRevC.80.044314; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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