Transition strengths and band terminations in 86Zr

  • M. Wiedeking
  • , S. L. Tabor
  • , F. Cristancho
  • , M. Devlin
  • , J. Doring
  • , C. B. Jackson
  • , G. D. Johns
  • , R. A. Kaye
  • , I. Y. Lee
  • , F. Lerma
  • , A. O. Macchiavelli
  • , M. Naidu
  • , I. Ragnarsson
  • , D. G. Sarantites
  • , G. Z. Solomon

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

High angular momentum states in 86Zr were populated through the 58Ni(32S,4p) reaction at 135 MeV using the 88-In. Cyclotron at Lawrence Berkeley National Laboratory. Recoiling 86Zr nuclei were stopped in a thick Ta backing. Prompt multi-γ coincidences with evaporated charged particles were detected using the full array of GAMMASPHERE and the MICROBALL. Mean lifetimes of 36 levels in 86Zr were measured using the Doppler-shift attenuation method. Transition quadrupole moments Qt were found in the range of about 0.3-1.5 e b in the positive-parity bands. The negative-parity bands show Qt values from about 0.25 to 1.2 e b. In the yrast positive-parity band, a sharp drop in collectivity approaching the 30+ state supports the interpretation of band termination in this configuration. Decreasing Qt values approaching the 24+ and 27- states also provide an indication of terminating structures.

Original languageEnglish
Article number034320
Pages (from-to)343201-3432014
Number of pages3088814
JournalPhysical Review C - Nuclear Physics
Volume67
Issue number3
DOIs
StatePublished - Mar 1 2003
Externally publishedYes

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