Observation of identical superdeformed bands in N=86 nuclei
Abstract
Excited superdeformed bands have been observed in the N=86 isotones 150Gd and 151Tb. The properties of these bands were found to closely resemble those of the yrast superdeformed bands in their Z+1 N=86 isotones (151Tb and 52Dy) such that, on average, the transition energies are identical to an accuracy of 1:1000. It is proposed that these excited superdeformed bands are based on single-proton excitations from the [301]1/2 orbital into the [651]3/2 intruder orbital and thus they are the first obsrevation of proton excitations in superdeformed nuclei.
- Publication:
-
Physical Review Letters
- Pub Date:
- April 1990
- DOI:
- 10.1103/PhysRevLett.64.1650
- Bibcode:
- 1990PhRvL..64.1650B
- Keywords:
-
- 21.10.Re;
- 23.20.Lv;
- 27.70.+q;
- Collective levels;
- gamma transitions and level energies;
- 150<
- =A<
- =189