Near yrast study of the fpg shell nuclei {sup 58}Ni, {sup 61}Cu, and {sup 61}Zn

Journal Article · Wed Dec 01 04:00:00 EST 1999 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.60.064308· OSTI ID:20218004

Vincent, S M ^[1]; Regan, P H ^[1]; Mohammadi, S ^[1]; Blumenthal, D ^[2]; Carpenter, M ^[2]; Davids, C N ^[2]; Gelletly, W ^[1]; Ghugre, S S ^[3]; Henderson, D J ^[2]; Janssens, R V. F. ^[2]

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1. Department of Physics, University of Surrey, Guildford GU2 5XH, (United Kingdom)
2. Physics Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439 (United States)
3. IUCDAEF-Calcutta Centre, Calcutta 700 064, (India)

The medium spin, near yrast states of the fpg shell nuclei {sup 58}Ni, {sup 61}Cu, and {sup 61}Zn have been studied following the fusion evaporation of a {sup 24}Mg beam and a {sup 40}Ca 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 {sub 28}{sup 58}Ni, {sub 29}{sup 61}Cu, and {sub 30}{sup 61}Zn 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 f{sub 5/2}, p{sub 3/2}, p{sub 1/2} orbitals outside a {sub 28}{sup 56}Ni core, and either the g{sub 9/2} orbital with a closed core, or f{sub 7/2} excitations from the core. (c) 1999 The American Physical Society.

• OSTI ID: 20218004
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 6 Vol. 60; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CALCIUM 40 TARGET
COPPER 61
EXPERIMENTAL DATA
GAMMA DECAY
HEAVY ION REACTIONS
MAGNESIUM 24 BEAMS
NICKEL 58
NUCLEAR STRUCTURE
SHELL MODELS
YRAST STATES
ZINC 61