Evidence for Partial Dynamical Symmetries in Atomic Nuclei


Casten R. F. , Cakirli R. B. , Blaum K., Couture A.

PHYSICAL REVIEW LETTERS, vol.113, no.11, 2014 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 113 Issue: 11
  • Publication Date: 2014
  • Doi Number: 10.1103/physrevlett.113.112501
  • Title of Journal : PHYSICAL REVIEW LETTERS

Abstract

Symmetries in nature offer very simple descriptions of complex systems. Partial Dynamical Symmetries (PDS) can considerably broaden their relevance. To present the first extensive test of a PDS for nuclei, we compare an SU(3) PDS to gamma to ground band B(E2) values for 47 deformed nuclei. The parameter-free PDS is found to be quite successful, but with characteristic discrepancies, suggesting that symmetry remnants are more pervasive than heretofore realized. Furthermore, the SU(3) PDS gives new insights into collective models (e.g., interacting boson approximation). If these reproduce the PDS, they reflect finite size effects, while differences from the PDS point to SU(3) configuration mixing.