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l-Forbidden Gamow-Teller decay of /sup 39/Ca

Technical Report ·
OSTI ID:5620525
; ; ;
The intensities of ..gamma..-rays emitted following the ..beta../sup +/ decays of /sup 39/Ca and /sup 35/Ar were measured by using a Ge(Li) detector to detect the delayed radiation from a KCl target bombarded by 13-MeV protons. From these results the experimental log(ft) values and related B(GT) values for the /sup 35/Ar and /sup 39/Ca decays are deduced. These are compared with shell-model calculations together with a recent computation by Towner and Khanna of the higher-order corrections due to configuration-mixing outside the sd shell, isobar currents and other meson-exchange currents. We concentrate on the significance of the l-forbidden 1d/sub 3/2/ - 2s/sub 1/2/ Gamow-Teller transition in mass 39 and comment on its relation to the corresponding M1 transitions in /sup 39/Ca and /sup 39/K. 38 references.
Research Organization:
Washington Univ., Seattle (USA). Nuclear Physics Lab.; Michigan State Univ., East Lansing (USA). Cyclotron Lab.
DOE Contract Number:
AC06-81ER40048
OSTI ID:
5620525
Report Number(s):
DOE/ER/40048-75-L3; ON: DE84001547
Country of Publication:
United States
Language:
English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALI METAL ISOTOPES
ALKALINE EARTH ISOTOPES
ARGON 35
ARGON ISOTOPES
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY
BETA-PLUS DECAY RADIOISOTOPES
BRANCHING RATIO
CALCIUM 39
CALCIUM ISOTOPES
CHLORINE 35
CHLORINE ISOTOPES
DATA
DECAY
ENERGY-LEVEL TRANSITIONS
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
FORBIDDEN TRANSITIONS
FT VALUE
GAMMA SPECTRA
GAMMA SPECTROSCOPY
GAMOW-TELLER RULES
INFORMATION
ISOTOPES
LIGHT NUCLEI
M1-TRANSITIONS
MULTIPOLE TRANSITIONS
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
POTASSIUM 39
POTASSIUM ISOTOPES
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SPECTRA
SPECTROSCOPY
STABLE ISOTOPES
THEORETICAL DATA