Published in

HNPS Proceedings, (14), p. 35, 2019

DOI: 10.12681/hnps.2245

American Physical Society, Physical Review C, 6(71)

DOI: 10.1103/physrevc.71.064309

Links

Tools

Export citation

Search in Google Scholar

Analytic Description of Critical Point Actinides in a Transition from Octupole Deformation to Octupole Vibrations

Journal article published in 2005 by Dennis Bonatsos, D. Lenis, N. Minkov, D. Petrellis ORCID, P. Yotov
This paper is available in a repository.
This paper is available in a repository.

Full text: Download

Question mark in circle
Preprint: policy unknown
Upload
Question mark in circle
Postprint: policy unknown
Upload
Question mark in circle
Published version: policy unknown
Upload

Abstract

An analytic collective model in which the relative presence of the quadrupole and octupole deformations is determined by a parameter (phi_0), while axial symmetry is obeyed, is developed. The model [to be called the analytic quadrupole octupole axially symmetric model (AQOA)] involves an infinite well potential, provides predictions for energy and B(EL) ratios which depend only on phi_0, draws the border between the regions of octupole deformation and octupole vibrations in an essentially parameter-independent way, and describes well 226-Th and 226-Ra, for which experimental energy data are shown to suggest that they lie close to this border. The similarity of the AQOA results with phi_0=45 degrees for ground state band spectra and B(E2) transition rates to the predictions of the X(5) model is pointed out. Analytic solutions are also obtained for Davidson potentials, leading to the AQOA spectrum through a variational procedure. Comment: LaTeX, 27 pages, including 14 postscript figures