• Rapid Communication

Observation of a new high-spin isomer in Pd94

T. S. Brock et al. (RISING Collaboration)
Phys. Rev. C 82, 061309(R) – Published 30 December 2010

Abstract

A second γ-decaying high-spin isomeric state, with a half-life of 197(22)ns, has been identified in the N=Z+2 nuclide Pd94 as part of a stopped-beam Rare Isotope Spectroscopic INvestigation at GSI (RISING) experiment. Weisskopf estimates were used to establish a tentative spin/parity of 19, corresponding to the maximum possible spin of a negative parity state in the restricted (p1/2, g9/2) model space of empirical shell model calculations. The reproduction of the E3 decay properties of the isomer required an extension of the model space to include the f5/2 and p3/2 orbitals using the CD-Bonn potential. This is the first time that such an extension has been required for a high-spin isomer in the vicinity of Sn100 and reveals the importance of such orbits for understanding the decay properties of high-spin isomers in this region. However, despite the need for the extended model space for the E3 decay, the dominant configuration for the 19 state remains (πp1/21g9/23)11(νg9/22)8. The half-life of the known, 14+, isomer was remeasured and yielded a value of 499(13) ns.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 26 October 2010

DOI:https://doi.org/10.1103/PhysRevC.82.061309

© 2010 The American Physical Society

Authors & Affiliations

Click to Expand

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 82, Iss. 6 — December 2010

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review C

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×