Levels in /sup 43/K and /sup 44/K excited by the. beta. decay of /sup 43/Ar and /sup 44/Ar
The nuclides /sup 43/Ar and /sup 44/Ar have been produced by spallation reactions on vanadium targets at E/sub p/ = 600 MeV. The subsequent ..beta.. decays to /sup 43/K and /sup 44/K have been studied via delayed ..gamma..-ray singles and ..gamma..-..gamma.. coincidence techniques. In /sup 43/K, excitation energies and ..gamma..-branching fractions have been determined for 19 levels. The logft values imply J/sup ..pi../ = 3/2/sup -/, 5/2/sup + -/ for the ground state of /sup 43/Ar. For /sup 44/Ar, evidence is found for four new ..beta.. branches and J/sup ..pi../ = 1/sup +/ is assigned to the levels at 2326 and 2574 keV on the basis of the ..beta..-decay selection rules. The proposed decay scheme accounts for ..gamma.. transitions between 10 levels, the first excited state being located at 182.6 keV. The structure of these nuclei is discussed in the weak coupling scheme.
- Research Organization:
- Centre de Recherches Nucleaires 67037 Stransbourg Cedex, France
- OSTI ID:
- 6685102
- Journal Information:
- Phys. Rev., C; (United States), Vol. 18:4
- Country of Publication:
- United States
- Language:
- English
Similar Records
Beta decay of the new isotopes /sup 52/K, /sup 52/Ca, and /sup 52/Sc; a test of the shell model far from stability
Coupled quadrupole-octupole excitations in $sup 44$Ca and the decay of $sup 44$K, $sup 44$Sc/subm/ and $sup 44$Sc/subg/
Related Subjects
PROTON REACTIONS
SPALLATION
VANADIUM 50 TARGET
VANADIUM 51 TARGET
ARGON 43
BETA-MINUS DECAY
POTASSIUM 43
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
ARGON 44
POTASSIUM 44
COINCIDENCE SPECTROMETRY
FT VALUE
GAMMA SPECTRA
MEV RANGE 100-1000
NUCLEAR STRUCTURE
PARITY
SPIN
WEAK-COUPLING MODEL
ALKALI METAL ISOTOPES
ANGULAR MOMENTUM
ARGON ISOTOPES
BARYON REACTIONS
BASIC INTERACTIONS
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CHARGED-PARTICLE REACTIONS
DECAY
ENERGY RANGE
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
HADRON REACTIONS
HOURS LIVING RADIOISOTOPES
INTERACTIONS
INTERMEDIATE MASS NUCLEI
ISOTOPES
LEPTONIC DECAY
MATHEMATICAL MODELS
MEV RANGE
MINUTES LIVING RADIOISOTOPES
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
PARTICLE DECAY
PARTICLE PROPERTIES
POTASSIUM ISOTOPES
RADIOISOTOPES
SPECTRA
TARGETS
WEAK INTERACTIONS
WEAK PARTICLE DECAY
651522* - Nuclear Properties & Reactions
A=39-58
Experimental- Radioactive Decay- (-1987)
651523 - Nuclear Properties & Reactions
A=39-58
Experimental- Energy Levels & Transitions- (-1987)
651525 - Nuclear Properties & Reactions
A=39-58
Experimental- Nuclear Reactions & Scattering- (-1987)