Shell-model study of sup 39 S(. beta. sup minus ) sup 39 Cl and the energy levels of sup 39 Cl

Journal Article · Fri Dec 01 04:00:00 EST 1989 · Physical Review (Section) C: Nuclear Physics; (USA)

DOI:https://doi.org/10.1103/PhysRevC.40.2823· OSTI ID:7016859

Warburton, E K ^[1]; Becker, J A ^[2]

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1. Brookhaven National Laboratory, Upton, New York 11973 (US) Physikalisches Institut der Universitaet Heidelberg and Max-Planck-Institut fuer Kernphysik, D-6900 Heidelberg, Germany, F.R.
2. Lawrence Livermore National Laboratory, Livermore, California 94550 (USA)

Shell-model calculations are performed for the odd- and even-parity states of {sup 39}Cl and the odd-parity states of {sup 39}S. The {sup 39}S odd-parity states and the {sup 39}Cl even-parity states were considered in full (1{ital s},0{ital d}){sup 20}(0f,1{ital p}){sup 3} and (1{ital s},0{ital d}){sup 21}(0f,1{ital p}){sup 2} configurational spaces, respectively. For the {sup 39}Cl odd-parity states it was necessary to use a highly truncated (1{ital s},0{ital d}){sup 20}(0f,1{ital p}){sup 3} configurational space. The method and results of truncation are discussed in some detail. Observables calculated include energy spectra, binding energies, {sup 40}Ar{r arrow}{sup 39}Cl+{ital p} spectroscopic factors, first-forbidden and allowed {beta}{sup {minus}} decay of {sup 39}S, and {gamma} transitions in both {sup 39}S and {sup 39}Cl. Results are compared to experiment. For example, the spectroscopic factors for 1/2{sup +} and 3/2{sup +} {sup 39}Cl states and the {gamma} transitions between the even-parity {sup 39}Cl states are predicted with high accuracy while the half-life of {sup 39}S is calculated to be 5.6 s (if the spin-parity of {sup 39}S has the preferred value of 7/2{sup {minus}}) as compared to the experimental value of 11.5{plus minus}0.5 s.

• OSTI ID: 7016859
• Journal Information: Physical Review (Section) C: Nuclear Physics; (USA), Journal Name: Physical Review (Section) C: Nuclear Physics; (USA) Vol. 40:6; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

653001* -- Nuclear Theory-- Nuclear Structure
Moments
Spin
& Models
653005 -- Nuclear Theory-- Radioactive Decay
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR MOMENTUM
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY
BETA-MINUS DECAY RADIOISOTOPES
BINDING ENERGY
CHLORINE 39
CHLORINE ISOTOPES
DECAY
ENERGY
ENERGY LEVELS
ENERGY SPECTRA
EVEN-ODD NUCLEI
HALF-LIFE
ISOTOPES
LIGHT NUCLEI
MATHEMATICAL MODELS
MINUTES LIVING RADIOISOTOPES
NUCLEAR DECAY
NUCLEAR MODELS
NUCLEI
ODD-EVEN NUCLEI
PARITY
PARTICLE PROPERTIES
RADIOISOTOPES
SHELL MODELS
SPECTRA
SPECTROSCOPIC FACTORS
SPIN
SULFUR 39
SULFUR ISOTOPES