Shell-model predictions for sup 41,42 Cl(. beta. sup minus ) sup 41,42 Ar and the A =41--43 Ar isotopes

Journal Article · Mon Jul 01 04:00:00 EDT 1991 · Physical Review, C (Nuclear Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevC.44.268· OSTI ID:5726667

Warburton, E K ^[1]

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1. Brookhaven National Laboratory, Upton, New York 11973 (US)

Shell-model calculations in the model space of the (0{ital d},1{ital s}) and (0{ital f},1{ital p}) major shells are made for the 1/2{sup +} and 3/2{sup +} states of {sup 41}Cl, the odd-parity states of {sup 41}Ar, and the even-parity states of {sup 42}Ar. Calculations for {sup 42}Cl, the even-parity states of {sup 41}Ar, and the odd-parity states of {sup 43}Ar were performed with various degrees of truncation. The results for the {sup 41}Cl ground state indicate {ital J}{sup {pi}}=3/2{sup +} with a binding energy of {minus}345 183 keV in excellent agreement with the experimental value of {minus}345 020{plus minus}150 keV. The predicted binding energies of {sup 41{minus}43}Ar are also in good agreement with experiment. The wave functions for the {ital A}=41 and 42 nuclei are used to calculate first-forbidden {beta}{sup {minus}}-decay rates. The 1/2{sup +} and 3/2{sup +} states of {sup 41}Ar are considered in a truncated model space and the results are used to estimate the allowed {beta}{sup {minus}}-decays rates of {sup 41}Cl. Spectroscopic factors and electromagnetic transition rates are calculated for {sup 41}Ar and compared to experiment. {sup 43}Ar is predicted to have a 5/2{sup {minus}} ground state.

• DOE Contract Number: AC02-76CH00016
• OSTI ID: 5726667
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 44:1; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

653001* -- Nuclear Theory-- Nuclear Structure
Moments
Spin
& Models
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR MOMENTUM
ARGON 41
ARGON 42
ARGON 43
ARGON ISOTOPES
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY
BETA-MINUS DECAY RADIOISOTOPES
BINDING ENERGY
CHLORINE 41
CHLORINE 42
CHLORINE ISOTOPES
DECAY
ENERGY
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FORBIDDEN TRANSITIONS
FUNCTIONS
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
ISOTOPES
MATHEMATICAL MODELS
MINUTES LIVING RADIOISOTOPES
NUCLEAR DECAY
NUCLEAR MODELS
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
PARITY
PARTICLE PROPERTIES
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SHELL MODELS
SPECTROSCOPIC FACTORS
SPIN
WAVE FUNCTIONS
WEAK-COUPLING MODEL
YEARS LIVING RADIOISOTOPES