Extensive Gamma-ray Spectroscopy of Normally and Superdeformed Structures in 61Cu

Research output: Contribution to journalArticle

Abstract

A largely extended experimental knowledge of the Cu-61(29)32 nucleus has been obtained from three experiments. Excited states in Cu-61 were produced via the fusion-evaporation reaction Si-28(Ar-36, 3p)Cu-61. In addition to the Ge array GAMMASPHERE, neutron and charged-particle detectors placed around the target position were used for high-performance particle spectroscopy. The constructed level scheme includes more than 160 energy levels and 320 gamma-ray transitions belonging to both normally deformed as well as superdeformed rotational structures. The multipolarities have been determined for the gamma-ray transitions and as a result spin-parity assignments are given for nearly all energy levels. Experimental results in the normally deformed region are compared with predictions from large-scale shell model calculations. The collective structures are compared with results from cranked Nilsson-Strutinsky calculations. The results reveal the need to modify the standard Nilsson parameters in the mass A similar to 60 region.

Details

Authors
  • Lise-Lotte Andersson
  • Emma Johansson
  • D A Torres
  • C Andreoiu
  • C Baktash
  • M P Carpenter
  • R J Charity
  • C J Chiara
  • Jörgen Ekman
  • C Hoel
  • O L Pechenaya
  • W Reviol
  • Rickard du Rietz
  • D G Sarantites
  • D Seweryniak
  • L G Sobotka
  • C H Yu
  • S Zhu
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Subatomic Physics
  • Physical Sciences
Original languageEnglish
Pages (from-to)251-278
JournalEuropean Physical Journal A. Hadrons and Nuclei
Volume36
Issue number3
Publication statusPublished - 2008
Publication categoryResearch
Peer-reviewedYes

Bibliographic note

The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Nuclear Physics (Faculty of Science) (011013004), Mathematical Physics (Faculty of Technology) (011040002)

Related research output

Andersson, L-L., 2008, Lund University (Media-Tryck). 214 p.

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