Identification of pseudospin partner bands in Tc108
Abstract
High-spin structures in the neutron-rich Tc108 nucleus have been reinvestigated by measuring the prompt γ-rays from spontaneous fission of Cf252. A previously known collective band has been extended up to higher spin states and a new side band has been identified. These doublet bands are proposed as pseudospin partner bands with configurations π1/2+[431]⊗ν[312~5/2+,3/2+], which is a first identification in A~100 region. The particle-rotor model (PRM) was applied to calculate levels and B(M1)/B(E2) ratios of the bands in Tc108. The calculated results are in good agreement with the experimental values.
- Publication:
-
Physical Review C
- Pub Date:
- December 2008
- DOI:
- 10.1103/PhysRevC.78.064301
- Bibcode:
- 2008PhRvC..78f4301X
- Keywords:
-
- 21.10.Re;
- 23.20.Lv;
- 27.60.+j;
- 25.85.Ca;
- Collective levels;
- gamma transitions and level energies;
- 90<
- =A<
- =149;
- Spontaneous fission