Test of the singly magic character of the N = 50 isotone /sup 83/As populated in /sup 83/Ge decay
Journal Article
·
· Phys. Rev. C; (United States)
The first information obtained on excited states of the N = 50 isotone /sup 83/As populated in the ..beta.. decay of neutron-rich /sup 83/Ge is presented. The /sup 83/Ge half-life was measured to be 1.85 +- 0.06 s. Using ..gamma.. singles and ..gamma gamma.. coincidence measurements, a total of 51 ..gamma.. rays were placed in a level scheme for /sup 83/As corresponding to 28 levels in a range of excitation energy up to 4.84 MeV. The density of levels up to 2.0 MeV excitation energy is reasonably well reproduced by shell-model calculations, indicating that /sup 78/Ni is probably a doubly magic nucleus. Approximately half of the ..beta.. intensity to excited states in /sup 83/As populates a group of levels above 3.5 MeV excitation energy which can be interpreted as primarily core polarization neutron particle-neutron hole states.
- Research Organization:
- Ames Laboratory and Iowa State University, Ames, Iowa 50011
- OSTI ID:
- 7057701
- Journal Information:
- Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 38:1; ISSN PRVCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
651620* -- Nuclear Properties & Reactions
A=59-89
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ARSENIC 83
ARSENIC ISOTOPES
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY
BETA-MINUS DECAY RADIOISOTOPES
COINCIDENCE SPECTROMETRY
DATA
DECAY
ENERGY LEVELS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
GAMMA SPECTRA
GERMANIUM 83
GERMANIUM ISOTOPES
HALF-LIFE
INFORMATION
INTERMEDIATE MASS NUCLEI
ISOTONIC NUCLEI
ISOTOPES
MATHEMATICAL MODELS
NICKEL 78
NICKEL ISOTOPES
NUCLEAR MODELS
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
PARTICLE-HOLE MODEL
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SHELL MODELS
SPECTRA
A=59-89
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ARSENIC 83
ARSENIC ISOTOPES
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY
BETA-MINUS DECAY RADIOISOTOPES
COINCIDENCE SPECTROMETRY
DATA
DECAY
ENERGY LEVELS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
GAMMA SPECTRA
GERMANIUM 83
GERMANIUM ISOTOPES
HALF-LIFE
INFORMATION
INTERMEDIATE MASS NUCLEI
ISOTONIC NUCLEI
ISOTOPES
MATHEMATICAL MODELS
NICKEL 78
NICKEL ISOTOPES
NUCLEAR MODELS
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
PARTICLE-HOLE MODEL
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SHELL MODELS
SPECTRA