Self-consistent cranking calculations for 20Ne

The rotational spectrum of 20Ne has been calculated in the self-consistent cranking model using the Skyrme interaction. The qualitative features of the spectrum, e.g., the band cutoff at J=8h/2π, are reproduced. The inclusion of states of the oscillator f-shell in the expansion of the single-particle states leads to a transition to an excited band for J>8h/2π. Special emphasis is put on an investigation of the structural properties near and beyond this band cutoff at J=8h/2π. The calculated rotational spacings are found to be considerably too small with all conventional variants of the Skyrme interaction. The difficulty is attributed to the p-state part of the Skyrme interaction. (Auth.)