Spherical Proton-neutron Structure of Isomeric States in 128Cd

Research output: Contribution to journalArticle

Abstract

The gamma-ray decay of isomeric states in the even-even nucleus Cd-128 has been observed. The nucleus of interest was produced both by the fragmentation of Xe-136 and the fission of U-238 primary beams. The level scheme was unambiguously constructed based on.. coincidence relations in conjunction with detailed lifetime analysis employed for the first time on this nucleus. Large-scale shell-model calculations, without consideration of excitations across the N = 82 shell closure, were performed and provide a consistent description of the experimental level scheme. The structure of the isomeric states and their decays exhibit coexistence of proton, neutron, and strongly mixed configurations due to p. interaction in overlapping orbitals for both proton and neutron holes.

Details

Authors
  • L. Caceres
  • M. Gorska
  • A. Jungclaus
  • M. Pfutzner
  • H. Grawe
  • F. Nowacki
  • K. Sieja
  • S. Pietri
  • Zs. Podolyak
  • P. H. Regan
  • E. Werner-Malento
  • P. Detistov
  • S. Lalkovski
  • V. Modamio
  • J. Walker
  • K. Andgren
  • P. Bednarczyk
  • J. Benlliure
  • G. Benzoni
  • A. M. Bruce
  • E. Casarejos
  • B. Cederwall
  • F. C. L. Crespi
  • P. Doornenbal
  • H. Geissel
  • J. Gerl
  • J. Grebosz
  • B. Hadinia
  • Robert Hoischen
  • G. Ilie
  • A. Khaplanov
  • M. Kmiecik
  • I. Kojouharov
  • R. Kumar
  • N. Kurz
  • A. Maj
  • S. Mandal
  • F. Montes
  • G. Martinez-Pinedo
  • S. Myalski
  • W. Prokopowicz
  • H. Schaffner
  • G. S. Simpson
  • S. J. Steer
  • S. Tashenov
  • O. Wieland
  • H. J. Wollersheim
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Subatomic Physics
Original languageEnglish
Article number011301
JournalPhysical Review C (Nuclear Physics)
Volume79
Issue number1
Publication statusPublished - 2009
Publication categoryResearch
Peer-reviewedYes