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Experimental and theoretical Gamow-Teller beta-decay observables for the sd-shell nuclei

Journal Article · · At. Data Nucl. Data Tables; (United States)
;
A comprehensive comparison of experimentally observed Gamow-Teller beta decay with theory is presented for the sd-shell (A = 17--39) nuclei. Relevant experimental data on half-lives, Q values, and branching ratios are tabulated and used to deduce experimental log (ft) values and Gamow-Teller matrix elements. These are compared with theoretical values based on complete (0d/sub 5/2/, 1s/sub 1/2/, 0d/sub 3/2/)- space shell-model wave functions. These wave functions are obtained from diagonalizations of a model Hamiltonian formulation which reproduces observed energy-level structures throughout the sd shell. The calculations are carried out both with the ''free-nucleon'' normalization for the Gamow-Teller single-particle matrix elements and with effective values for matrix elements obtained from analyses of experimental Gamow-Teller magnitudes with the shell-model wave functions.
Research Organization:
Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824
OSTI ID:
6172596
Journal Information:
At. Data Nucl. Data Tables; (United States), Journal Name: At. Data Nucl. Data Tables; (United States) Vol. 33:3; ISSN ADNDA
Country of Publication:
United States
Language:
English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
AMPLITUDES
BETA DECAY
BRANCHING RATIO
COUPLING CONSTANTS
DATA
DATA COMPILATION
DECAY
ENERGY
FT VALUE
FUNCTIONS
HALF-LIFE
HAMILTONIANS
INFORMATION
LIGHT NUCLEI
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
MATHEMATICAL SPACE
MATRIX ELEMENTS
NUCLEAR MODELS
NUCLEI
NUMERICAL DATA
PHASE SPACE
Q-VALUE
QUANTUM OPERATORS
SHELL MODELS
SPACE
TRANSITION AMPLITUDES
WAVE FUNCTIONS