1. Near yrast study of the fpg shell nuclei 58Ni, 61Cu, and 61Zn
- Author
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Vincent, S. M., Regan, P. H., Mohammadi, S., Blumenthal, D., Carpenter, M., Davids, C. N., Gelletly, W., Ghugre, S. S., Henderson, D. J., Janssens, R. V. F., Morten Hjorth-Jensen, Kharraja, B., Lister, C. J., Pearson, C. J., Seweryniak, D., Schwartz, J., Simpson, J., and Warner, D. D.
- Abstract
The medium spin, near yrast states of the fpg shell nuclei 58Ni, 61Cu, and 61Zn have been studied following the fusion evaporation of a 24Mg beam and a 40Ca target. Discrete transitions were unambiguously identified using the AYEBALL gamma-ray array in conjunction with the Argonne fragment mass analyzer and a split anode ionization chamber. The decay schemes of 5828Ni, 6129Cu, and 6130Zn have been extended with the results of gamma-gamma coincidences and directional correlation from oriented state measurements used to determine the level excitation energies, spins, and parities of a number of near yrast states. The decay schemes deduced are compared with previous work and interpreted in terms of shell model calculations, with a restricted basis of the f5/2, p3/2, p1/2 orbitals outside a 5628Ni core, and either the g9/2 orbital with a closed core, or f7/2 excitations from the core.
- Published
- 1999
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