Collectivity in PB-196, Pb-198 isotopes probed in Coulomb-excitation experiments at REX-ISOLDE

Research output: Contribution to journalArticlepeer-review

Authors

  • Janne Pakarinen
  • Tuomas Grahn
  • Liam Paul Gaffney
  • Alejandro Algora
  • Christopher Bauer
  • Andrey Blazhev
  • Nick Bree
  • Thomas Elias Cocolios
  • Hilde De Witte
  • Jan Diriken
  • P. Fernier
  • K Hadynska-Klek
  • A Herzan
  • Mark Huyse
  • Jendrek Iwanicki
  • U. Jakobsson
  • D Jenkins
  • Joonas Konki
  • B. Lannoo
  • P. Papadakis
  • PJ Peura
  • P Rahkila
  • G. Rainovski
  • Elisa Rapisarda
  • Peter Reiter
  • Sara Sambi
  • Marcus Scheck
  • B. Seibeck
  • Michael Seidlitz
  • Thierry Stora
  • Piet Van Duppen
  • Nigel Warr
  • Fredrik Wenander
  • MJ Vermeulen
  • Didier Voulot
  • Kasia Wrzosek-Lipska
  • Magda Zielinska

Institutes & Expert groups

  • Institut für Kernphysik der Universität zu Köln
  • CERN - Conseil Européen pour la Recherche Nucléaire
  • HIL - Heavy Ion Laboratory
  • University of Jyväskylä - Finland
  • University of York
  • KUL - Katholieke Universiteit Leuven
  • University of Liverpool
  • UMG - University of Mining and Geology - St. Ivan Rilski
  • University of Helsinki
  • IFIC - Instituto de Física Corpuscular - Spain
  • ATOMKI - Institute of Nuclear Research of the Hungarian Academy of Sciences
  • University of Manchester
  • UWS - University of the West of Scotland
  • Technical university Darmstadt - Technische Universität Darmstadt, Institut für Kernphysik - Germany
  • University of Warsaw

Documents & links

DOI

Abstract

The neutron-deficient Pb-196,Pb-198 isotopes have been studied in Coulomb-excitation experiments employing the Miniball gamma-ray spectrometer and radioactive ion beams from the REX-ISOLDE post-accelerator at CERN. The reduced transition probabilities of the first excited 2(+) states in Pb-196 and Pb-198 nuclei have been measured for the first time. Values of B (E2) = 18.2(-4.1)(+4.8) W. u. and B (E2) = 13.1(-3.5)(+4.9) W. u., were obtained, respectively. The experiment sheds light on the development of collectivity when moving from the regime governed by the generalised seniority scheme to a region, where intruding structures, associated with different deformed shapes, start to come down in energy and approach the spherical ground state.

Details

Original languageEnglish
Article number064009
Number of pages10
JournalJournal of Physics G: Nuclear and Particle Physics
Volume44
DOIs
Publication statusPublished - 3 May 2017

Keywords

  • Collectivity, Pb-196, Pb-198, Coulomb, REX-ISOLDE

ID: 2886831