A currently popular Dirac model of nuclear wave functions is examined to determine whether its ratio of "small" to "large" components agrees with recent data on the asymmetry in polarized $A=12\mathrm{}$ nuclear beta decay, as well as with $A=15\mathrm{}$ magnetic moments. The magnetic moments agree well, and no clear inconsistency is found with the beta-decay asymmetry, but future experiments on the latter might reveal a problem since theory and experiment disagree by about 1 standard deviation.

NUCLEAR STRUCTURE ${}_{}{}^{15}{}_{}{}^{}\mathrm{O}$, ${}_{}{}^{15}{}_{}{}^{}\mathrm{N}$; calculated magnetic moments. Relativistic single-particle wave functions, exchange current. $A=12\mathrm{}$; calculated axial dipole matrix element. Relativistic treatment, Cohen-Kurath configurations.

• Received 27 November 1978

DOI:https://doi.org/10.1103/PhysRevC.20.1188