A quantitative evaluation of the reliability of calculated decay properties of nuclei in the mass region A=24-28, ch. 1

Electromagnetic transition rates and log ft values were calculated for transitions between positive-parity states in the A = 24 - 28 mass region. The wave functions used were taken from a previous paper. In general satisfactory agreement with the experiment was found. In order to obtain a measure of the stability of the results against changes in the Hamiltonian, a method was developed for assigning errors to calculated transition properties. The renormalized single-particle matrix elements of the E2 and M1 transition operators were determined in a phenomenological way. To this end, use was made of the errors just mentioned. It was found that good agreement was obtained with bare-nucleon M1 single-particle matrix elements and with a state independent effective isoscalar charge for the E2 operator. Predictions for static moments are given