Phys. Rev. C 70, 054319 (2004) [7 pages]

Nuclear structure in the vicinity of N=Z=28 ⁵⁶Ni

Abstract

References

Citing Articles (16)

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K. L. Yurkewicz^1,2, D. Bazin², B. A. Brown^1,2, C. M. Campbell^1,2, J. A. Church^1,2, D. C. Dinca^1,2, A. Gade^1,2, T. Glasmacher^1,2, M. Honma³, T. Mizusaki⁴, W. F. Mueller², H. Olliver^1,2, T. Otsuka^5,6, L. A. Riley⁷, and J. R. Terry^1,2
¹Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
²National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
³Center for Mathematical Sciences, University of Aizu, Tsuruga, Ikki-machi, Aizu-Wakamatsu, Fukushima 965-8580, Japan
⁴Institute of Natural Sciences, Senshu University, Higashimita, Tama, Kawasaki, Kanagawa 214-8580, Japan
⁵Department of Physics and Center for Nuclear Study, University of Tokyo, Hongo, Tokyo 113-0033, Japan
⁶RIKEN, Hirosawa, Wako-shi, Saitama 351-0198, Japan
⁷Department of Physics and Astronomy, Ursinus College, Collegeville, Pennsylvania 19426, USA

Received 13 March 2004; published 23 November 2004

The isotopes ⁵⁴Ni, ⁵⁶Ni, and ⁵⁸Ni have been studied via intermediate-energy Coulomb excitation at the National Superconducting Cyclotron Laboratory. Absolute B(E2;0₁⁺→2₁⁺) 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⁺ state of ⁵⁴Ni have been observed for the first time. The results are compared to large-scale shell-model calculations that predict that the E2 strength in ⁵⁴Ni should be divided between the first and second 2⁺ states.

URL:

http://link.aps.org/doi/10.1103/PhysRevC.70.054319

DOI:

10.1103/PhysRevC.70.054319

PACS:

25.70.De, 27.40.+z

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Phys. Rev. C 70, 054319 (2004) [7 pages]

Nuclear structure in the vicinity of N=Z=28 56Ni

Nuclear structure in the vicinity of N=Z=28 ⁵⁶Ni