Additivity in superdeformed bands
It is shown that the observed transition energies in the superdeformed bands of 148Gd and 146Gd and the two bands of 147Gd are related by a simple linear expression. This is another indication of the remarkable stability of the superdeformed bands and strongly suggests that only two orbitals are active. The relative properties are analysed in terms of the (effective) aligned spin brought in by spe
