Gamow-Teller beta decays in 1S-0D shell nuclei
Thesis/Dissertation
·
OSTI ID:5190330
We have examined the BETA/sup +/ decays of eight 1s-0d shell nuclei (/sup 26/Si, /sup 30/P, /sup 30/S, /sup 31/S, /sup 33/Cl, /sup 34/Cl, /sup 35/Ar and /sup 38/Ca) by measuring the relative intensities of daughter ..gamma.. rays with a large-volume high-resolution Ge (Li) detector. This work revealed the existence of seen previously unreported branches to excited states and established new limits for twenty-seven others. For /sup 31/S, /sup 33/Cl and /sup 35/Ar, as well as for /sup 25/Al, measurements of the absolute intensities of the excited state branches were made by normalizing ..gamma..-ray intensities to the intensity of 511-keV positron-annihilation radiation. Precise measurements of the half-lives of /sup 26/Si, /sup 30/S and /sup 38/Ca were also made and, combined with the results of the CVC theory, this provided an absolute normalization for the ..gamma..-ray intensities in these nuclei. In each case, the experimentally determined Gamow-Teller strengths are compared to the results of recent large-basis shell-model calculations. A general comparison of experimental and shell-model Gamow-Teller strengths for 1s-0d shell nuclei is made.
- Research Organization:
- California Inst. of Tech., Pasadena (USA)
- OSTI ID:
- 5190330
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
651422* -- Nuclear Properties & Reactions
A=20-38
Experimental-- Radioactive Decay-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALINE EARTH ISOTOPES
AMPLITUDES
ARGON 35
ARGON ISOTOPES
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY
BETA-PLUS DECAY RADIOISOTOPES
CALCIUM 38
CALCIUM ISOTOPES
CHLORINE 33
CHLORINE 34
CHLORINE ISOTOPES
DATA
DECAY
DECAY AMPLITUDES
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
FUNCTIONS
GAMOW-TELLER RULES
HALF-LIFE
INFORMATION
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LIGHT NUCLEI
MINUTES LIVING RADIOISOTOPES
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
PHOSPHORUS 30
PHOSPHORUS ISOTOPES
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SILICON 26
SILICON ISOTOPES
STRENGTH FUNCTIONS
SULFUR 30
SULFUR 31
SULFUR ISOTOPES
TRANSITION AMPLITUDES
A=20-38
Experimental-- Radioactive Decay-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALINE EARTH ISOTOPES
AMPLITUDES
ARGON 35
ARGON ISOTOPES
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY
BETA-PLUS DECAY RADIOISOTOPES
CALCIUM 38
CALCIUM ISOTOPES
CHLORINE 33
CHLORINE 34
CHLORINE ISOTOPES
DATA
DECAY
DECAY AMPLITUDES
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
FUNCTIONS
GAMOW-TELLER RULES
HALF-LIFE
INFORMATION
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LIGHT NUCLEI
MINUTES LIVING RADIOISOTOPES
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
PHOSPHORUS 30
PHOSPHORUS ISOTOPES
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SILICON 26
SILICON ISOTOPES
STRENGTH FUNCTIONS
SULFUR 30
SULFUR 31
SULFUR ISOTOPES
TRANSITION AMPLITUDES