Decay studies of neutron-rich A{approx_equal}70 nuclei produced by fragmentation of 70 MeV/A {sup 76}Ge projectiles

Journal Article · Mon Dec 21 04:00:00 EST 1998 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.57255· OSTI ID:21207810

Prisciandaro, J I; Mantica, P F; Anthony, D W; Lofy, P A ^[1]; Huhta, M; Ronningen, R M; Steiner, M ^[1]; Walters, W B ^[2]

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1. NSCL, Michigan State University, East Lansing, Michigan 48824 (United States)
2. University of Maryland, College Park, Maryland 20742 (United States)

Neutron-rich nuclides in the vicinity of the semi-magic nucleus {sup 68}Ni have been produced by fragmentation of a 70 MeV/nucleon {sup 76}Ge beam in a Be target. Beta-delayed {gamma} ray studies were performed for these nuclides using a collection wheel apparatus, two thin plastic scintillators, and two large volume Ge detectors. A 195-keV isomeric transition was identified in {sup 73}Zn having T{sub 1/2}=13.0(2) ms. A 1296-keV {gamma}-ray transition with T{sub 1/2}=3.4(7) s has also been identified. The half-life of this transition is not consistent with the known beta-decay half-lives of nuclides in this region and may be evidence for a new {beta}-decaying isomeric state in {sup 69}Ni or {sup 71}Cu.

• OSTI ID: 21207810
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 455; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BERYLLIUM 9 TARGET
BETA DECAY
COPPER 71
GAMMA SPECTRA
GE SEMICONDUCTOR DETECTORS
GERMANIUM 76 BEAMS
GERMANIUM 76 REACTIONS
HALF-LIFE
ISOMERIC NUCLEI
ISOMERIC TRANSITIONS
KEV RANGE
MAGIC NUCLEI
MEV RANGE
NICKEL 68
NICKEL 69
NUCLEAR FRAGMENTATION
NUCLEAR FRAGMENTS
ZINC 73