ELECTROMAGNETIC PROPERTIES OF THE 0-1(+),2-1(+),4-1(+) STATES IN NE-20, MG-24, SI-28, S-32

The 0+, 2+, 4+ sequence in the 4N nuclei in the 1s-0d shell has been examined by comparing the results of a large-basis shell-model calculation with electron scattering data. While the ground state is well described by the shell-model wave function there is evidence that extra s-d space configurations play an important role in defining the radial shapes of inelastic transition densities. For 0+ → 4+ transitions, mixing of the Og shell is important. The Chung-Wildenthal interaction shows erroneous behaviour in the description of some of the electromagnetic properties of these states. © 1979.