Levels in /sup 45/K and /sup 46/K excited by the. beta. decay of /sup 45/Ar and /sup 46/Ar

Journal Article · Fri Feb 01 04:00:00 EST 1980 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.21.712· OSTI ID:5541360

Huck, A; Klotz, G; Knipper, A; Miehe, C; Walter, G; Richard-Serre, C

The nuclides /sup 45/Ar and /sup 46/Ar have been produced by spallation reactions on vanadium targets at E/sub p/=600 MeV. The subsequent ..beta.. decays to /sup 45/K and /sup 46/K states have been studied. An intensity of 98.6 +- 0.6% was measured for the ..beta.. transition to the 1.94 MeV state in /sup 46/K. A decay scheme involving 13 ..beta.. branches has been established for /sup 45/Ar, and the corresponding log ft values have been deduced. Eleven states are reported for the first time in the ..beta.. decay scheme of /sup 45/Ar at 1.42, 1.47, 1.72, 2.52, 2.57, 2.75, 3.31, 3.99, 4.04, 4.36, and 4.57 MeV. From the lifetime, tau=4.6 +- 0.6 ns, deduced from ..gamma..-..gamma.. delayed coincidences, the angular momentum of the 1081 keV level has been established as 7/2/sup -/ on the basis of the transition strength of its ..gamma.. decay. A survey on the 1f/sub 7/2/ ..-->.. 1d/sub 3/2/ M2 transition in odd K nuclei is presented and the observed hindrance factors are discussed.

• Research Organization: Centre de Recherches Nucleaires, 67037 Strasbourg Cedex, France
• OSTI ID: 5541360
• Journal Information: Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 21:2; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALI METAL ISOTOPES
ANGULAR MOMENTUM
ARGON 45
ARGON 46
ARGON ISOTOPES
BARYON REACTIONS
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY
BETA-MINUS DECAY RADIOISOTOPES
CHARGED-PARTICLE REACTIONS
COINCIDENCE SPECTROMETRY
DECAY
DELAYED GAMMA RADIATION
ELECTROMAGNETIC RADIATION
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FT VALUE
GAMMA RADIATION
HADRON REACTIONS
INTERMEDIATE MASS NUCLEI
IONIZING RADIATIONS
ISOTOPES
LIFETIME
M2-TRANSITIONS
MEV RANGE
MEV RANGE 100-1000
MINUTES LIVING RADIOISOTOPES
MULTIPOLE TRANSITIONS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
PARITY
PARTICLE PROPERTIES
POTASSIUM 45
POTASSIUM 46
POTASSIUM ISOTOPES
PROMPT GAMMA RADIATION
PROTON REACTIONS
RADIATIONS
RADIOISOTOPES
SPALLATION
SPIN
TARGETS
VANADIUM 50 TARGET
VANADIUM 51 TARGET