Gamow-Teller beta-decay rates forA≤18 nuclei

1 January 1993

journal article
research article
Published by American Physical Society (APS) in Physical Review C

Vol. 47 (1) , 163-177
https://doi.org/10.1103/physrevc.47.163

Abstract

A comprehensive analysis is made of the experimental information on Gamow-Teller beta decay for the light (A≤18) nuclei. Experimental data on half-lives, Q values, and branching ratios are tabulated. Experimental logft values and beta-decay matrix elements are deduced from these data. The one-body-transition densities necessary to predict the beta-decay matrix elements are then calculated using a recently constructed shell-model Hamiltonian operating in the first four major shells. Using these parameters, effective Gamow-Teller operators are deduced for the 0p shell from a least-squares fit to 16 experimental matrix elements. The effective operators are used to calculate 83 decay matrix elements. Some specific decays are discussed.

Keywords

This publication has 51 references indexed in Scilit:

Superallowed 0+ → 0+ nuclear β-decays: A critical survey with tests of CVC and the standard model
Nuclear Physics A, 1990
Corrections to the Fermi Matrix Element for Superallowed $β$ Decay
Physical Review Letters, 1989
Corrections to the Fermi Matrix Element for Superallowed $β$ Decay
Physical Review Letters, 1989
Experimental and theoretical Gamow-Teller beta-decay observables for the sd-shell nuclei
Atomic Data and Nuclear Data Tables, 1985
Corrections to the free-nucleon values of the single-particle matrix elements of the $M 1$ and Gamow-Teller operators, from a comparison of shell-model predictions with $sd$ -shell data
Physical Review C, 1983
Mixed Fermi and Gamow-Teller β-transitions and isoscalar magnetic moments
Atomic Data and Nuclear Data Tables, 1978
A parametrization of the phase space factor for allowed β-decay
Nuclear Physics A, 1974
Renormalization of the axial-vector coupling constant in nuclear β-decay (III)
Nuclear Physics A, 1974
Renormalization of the axial-vector coupling constant in nuclear β-decay (II)
Nuclear Physics A, 1973
Renormalization of the Axial-Vector Coupling Constant in Nuclear $β$ Decay
Physical Review C, 1973