| Issue |
EPJ Web of Conferences
Volume 107, 2016
International Conference on Nuclear Structure and Related Topics (NSRT15)
|
|
|---|---|---|
| Article Number | 03008 | |
| Number of page(s) | 6 | |
| Section | Nuclear Spectroscopy – Experiment and Theory | |
| DOI | https://doi.org/10.1051/epjconf/201610703008 | |
| Published online | 19 January 2016 | |
https://doi.org/10.1051/epjconf/201610703008
Octupole deformations in high-K isomeric states of heavy and superheavy nuclei
1 Institute of Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Tzarigrad Road 72, BG–1784 Sofia, Bulgaria
2 Department of Physics, University of Surrey, Guildford GU2 7XH, UK
a nminkov@inrne.bas.bg
b p.walker@surrey.ac.uk
Published online: 19 January 2016
We study the effects of quadrupole-octupole deformations on the energy and magnetic properties of high-K isomeric states in even-even heavy and superheavy nuclei. The neutron two-quasiparticle (2qp) isomeric energies and magnetic dipole moments are calculated within a deformed shell model with the Bardeen-Cooper- Schrieffer (BCS) pairing interaction over a wide range of quadrupole and octupole deformations. We found that in most cases the magnetic moments exhibit a pronounced sensitivity to the octupole deformation, while the 2qp energies indicate regions of nuclei in which the presence of high-K isomeric states may be associated with the presence of octupole softness or even with octupole deformation. In the present work we also examine the influence of the BCS pairing strength on the energy of the blocked isomer configuration. We show that the formation of 2qp energy minima in the space of quadrupole-octupole and eventually higher multipolarity deformations is a subtle effect depending on nuclear pairing correlations.
© Owned by the authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.