Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf

The structure of the magnetic dipole bands is studied by means of shell-modell
calculations. The calculations correlate with the data, showing a transition
from irregular sequences in the light isotopes to regular bands in the
heavy ones. The analysis of the wave functions reveals a more complex mechanism
of angular momentum generation than in the Pb isotopes: the shears mechanism
of the intruder orbitals and the normal parity neutrons make comparable
contributions.