Core-excited states in the doubly magic {sup 68}Ni and its neighbor {sup 69}Cu

Journal Article · Tue Nov 16 04:00:00 EST 1999 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1301740· OSTI ID:21207619

Ishii, T; Asai, M; Matsuda, M; Ichikawa, S ^[1]; Makishima, A ^[2]; Hossain, I; Ogawa, M; Hasegawa, J ^[3]

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1. Advanced Science Research Center, Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195 (Japan)
2. Department of Liberal Arts and Sciences, National Defense Medical College, Tokorozawa, Saitama 359-8513 (Japan)
3. Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology, Meguro, Tokyo 152-8550 (Japan)

The ({nu}g{sub 9/2}{sup 2}{nu}p{sub 1/2}{sup -2}){sub 8{sup +}} isomer with T{sub 1/2}=23(1) ns at 4208 keV in {sup 68}Ni was found by deep-inelastic collisions of {sup 70}Zn(8 MeV/nucleon)+{sup 198}Pt and the {nu}g{sub 9/2} E2 effective charge was determined to be 1.5(1)e. In {sup 69}Cu, the ({pi}p{sub 3/2}{nu}g{sub 9/2}{sup 2}{nu}p{sub 1/2}{sup -2}){sub 19/2{sup -}} isomer with T{sub 1/2}=22(1) ns at 3691 keV was identified and its decay data were calculated quite accurately by a parameter-free shell model calculation using experimental level energies. Proton 2p-1h excitation, fed by another T{sub 1/2}=39(6) ns isomer, induces large collectivity in {sup 69}Cu.

• OSTI ID: 21207619
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 495; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
COPPER 69
DEEP INELASTIC HEAVY ION REACTIONS
DEEP INELASTIC SCATTERING
E2-TRANSITIONS
EFFECTIVE CHARGE
EXCITATION
EXCITED STATES
ISOMERIC NUCLEI
KEV RANGE
MAGIC NUCLEI
MEV RANGE
NICKEL 68
NUCLEAR DECAY
NUCLEAR STRUCTURE
PLATINUM 198 TARGET
PROTONS
SHELL MODELS
ZINC 70 REACTIONS