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

Research output: Contribution to journalArticlepeer-review


  • 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



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.


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


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

ID: 2886831