• Open Access

Nilsson-SU3 self-consistency in heavy N=Z nuclei

A. P. Zuker, A. Poves, F. Nowacki, and S. M. Lenzi
Phys. Rev. C 92, 024320 – Published 26 August 2015

Abstract

It is argued that there exist natural shell-model spaces optimally adapted to the operation of two variants of Elliott's SU3 symmetry that provide accurate predictions of quadrupole moments of deformed states. A self-consistent Nilsson-like calculation describes the competition between the realistic quadrupole force and the central field, indicating a remarkable stability of the quadrupole moments—which remain close to their quasi- and pseudo-SU3 values—as the single-particle splittings increase. A detailed study of the N=Z even nuclei from Ni56 to Cd96 reveals that the region of prolate deformation is bounded by a pair of transitional nuclei Kr72 and Mo84 in which prolate ground-state bands are predicted to dominate, though coexisting with oblate ones.

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  • Received 29 April 2014
  • Revised 25 June 2015

DOI:https://doi.org/10.1103/PhysRevC.92.024320

This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

©2015 American Physical Society

Authors & Affiliations

A. P. Zuker1, A. Poves2,3, F. Nowacki1, and S. M. Lenzi4

  • 1Université de Strasbourg, IPHC, CNRS, UMR7178, 23 rue du Loess 67037 Strasbourg, France
  • 2Departamento de Física Teórica e IFT-UAM/CSIC, Universidad Autónoma de Madrid, 28049 Madrid, Spain
  • 3ISOLDE, CERN, CH-1211 Genève, Switzerland
  • 4Dipartimento di Fisica e Astronomia dell'Università and INFN, Sezione di Padova, I-35131 Padova, Italy

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Vol. 92, Iss. 2 — August 2015

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