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

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Pakarinen , J , Grahn , T , Gaffney , L P , Algora , A , Bauer , C , Blazhev , A , Bree , N , Cocolios , T E , De Witte , H , Diriken , J , Fernier , P , K , H-K K , Herzan , A , Huyse , M , Iwanicki , J , Jakobsson , U , Jenkins , D , Kesteloot , N , Konki , J , Lannoo , B , Papadakis , P , Peura , P , Rahkila , P , Rainovski , G , Rapisarda , E , Reiter , P , Sambi , S , Scheck , M , Seibeck , B , Seidlitz , M , Stora , T , Van Duppen , P , Warr , N , Wenander , F , Vermeulen , M J , Voulot , D , Wrzosek-Lipska , K & Zielinska , M 2017 , ' Collectivity in Pb-196,Pb-198 isotopes probed in Coulomb-excitation experiments at REX-ISOLDE ' , Journal of Physics G: Nuclear and Particle Physics , vol. 44 , no. 6 , 064009 . https://doi.org/10.1088/1361-6471/aa6753

Title: Collectivity in Pb-196,Pb-198 isotopes probed in Coulomb-excitation experiments at REX-ISOLDE
Author: Pakarinen, J.; Grahn, T.; Gaffney, L. P.; Algora, A.; Bauer, C.; Blazhev, A.; Bree, N.; Cocolios, T. E.; De Witte, H.; Diriken, J.; Fernier, P.; K, Hadynska-Kle K.; Herzan, A.; Huyse, M.; Iwanicki, J.; Jakobsson, Ulrika; Jenkins, D.; Kesteloot, N.; Konki, J.; Lannoo, B.; Papadakis, P.; Peura, P.; Rahkila, P.; Rainovski, G.; Rapisarda, E.; Reiter, P.; Sambi, S.; Scheck, M.; Seibeck, B.; Seidlitz, M.; Stora, T.; Van Duppen, P.; Warr, N.; Wenander, F.; Vermeulen, M. J.; Voulot, D.; Wrzosek-Lipska, K.; Zielinska, M.
Other contributor: University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
Date: 2017-06
Language: eng
Number of pages: 10
Belongs to series: Journal of Physics G: Nuclear and Particle Physics
ISSN: 0954-3899
DOI: https://doi.org/10.1088/1361-6471/aa6753
URI: http://hdl.handle.net/10138/231711
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.
Subject: Coulomb excitation
radioactive ion beams
gamma-ray spectroscopy
gamma transitions and level energies
ACCELERATED RADIOACTIVE BEAMS
SHAPE COEXISTENCE
EXCITED-STATES
NUCLEI
SHELL
SCATTERING
114 Physical sciences
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