``Beat'' patterns for the oddeven staggering in octupole bands from a quadrupoleoctupole Hamiltonian
Abstract
We propose a collective Hamiltonian which incorporates quadrupole terms, octupole terms classified according to the irreducible representations of the octahedron group, a quadrupoleoctupole interaction, as well as a term for the bandhead energy linear in K (the projection of angular momentum on the bodyfixed z axis). The energy is subsequently minimized with respect to K for each given value of the angular momentum I, resulting in K values increasing with I within each band, even in the case in which K is restricted to a set of microscopically plausible values. We demonstrate that this Hamiltonian is able to reproduce a variety of ``beat'' patterns observed recently for the oddeven staggering in octupole bands of light actinides.
 Publication:

Physical Review C
 Pub Date:
 April 2001
 DOI:
 10.1103/PhysRevC.63.044305
 arXiv:
 arXiv:nuclth/0106008
 Bibcode:
 2001PhRvC..63d4305M
 Keywords:

 21.60.Fw;
 21.60.Ev;
 21.10.Re;
 Models based on group theory;
 Collective models;
 Collective levels;
 Nuclear Theory;
 Mathematical Physics;
 Nuclear Experiment
 EPrint:
 LaTeX, 20 pages plus 12 figures given in separate .ps files