Nuclear structure in the vicinity of N=Z=28 {sup 56}Ni
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824 (United States)
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States)
- Center for Mathematical Sciences, University of Aizu, Tsuruga, Ikki-machi, Aizu-Wakamatsu, Fukushima 965-8580 (Japan)
- Institute of Natural Sciences, Senshu University, Higashimita, Tama, Kawasaki, Kanagawa 214-8580 (Japan)
- Department of Physics and Center for Nuclear Study, University of Tokyo, Hongo, Tokyo 113-0033 (Japan)
- Department of Physics and Astronomy, Ursinus College, Collegeville, Pennsylvania 19426 (United States)
The isotopes {sup 54}Ni, {sup 56}Ni, and {sup 58}Ni have been studied via intermediate-energy Coulomb excitation at the National Superconducting Cyclotron Laboratory. Absolute B(E2;0{sub 1}{sup +}{yields}2{sub 1}{sup +}) excitation strengths have been determined for all three nuclei using a consistent experimental approach, and a measure of quadrupole collectivity has been established in the vicinity of the much discussed doubly magic shell closure at N=Z=28. The energy of and excitation strength to the first 2{sup +} state of {sup 54}Ni have been observed for the first time. The results are compared to large-scale shell-model calculations that predict that the E2 strength in {sup 54}Ni should be divided between the first and second 2{sup +} states.
- OSTI ID:
- 20695737
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 70, Issue 5; Other Information: DOI: 10.1103/PhysRevC.70.054319; (c) 2004 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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