Transition Quadrupole Moments in the Superdeformed Band of 40Ca

Research output: Contribution to journalArticle

Abstract

The transition quadrupole moments Q(t) for the superdeformed band in Ca-40 have been determined through thin-target Doppler-shift attenuation analyses. A best-fit value of Q(t)=1.30+/-0.05 e b is obtained when a single value is assumed for the entire band. Fitting separate quadrupole moments for in-band transitions decaying from the high-spin states and the presumably admixed low-spin states results in Q(t)(high)= 1.81(-0.26)(+0.41) e b and Q(t)(low)=1.18(-0.05)(+0.06) e b, respectively. Q(t) values extracted for individual transitions in a Doppler-broadened line-shape analysis also indicate smaller Q(t) values at lower spins. These results are consistent with the interpretation of this band as an eight-particle-eight-hole superdeformed band with a significant admixture of less-collective configurations at low spins.

Details

Authors
  • CJ Chiara
  • E Ideguchi
  • M Devlin
  • DR LaFosse
  • F Lerma
  • W Reviol
  • SK Ryu
  • DG Sarantites
  • C Baktash
  • A Galindo-Uribarri
  • MP Carpenter
  • RVF Janssens
  • T Lauritsen
  • CJ Lister
  • P Reiter
  • D Seweryniak
  • P Fallon
  • A Gorgen
  • AO Macchiavelli
  • Dirk Rudolph
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Subatomic Physics
Original languageEnglish
Article number041303(R)
JournalPhysical Review C (Nuclear Physics)
Volume67
Issue number4
Publication statusPublished - 2003
Publication categoryResearch
Peer-reviewedYes