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

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Grahn, T., Pakarinen, J., Gaffney, L. P., Algora, A., Bauer, C., Blazhev, A., . . . Zielińska, M. (2017). Collectivity in 196,198Pb isotopes probed in Coulomb-excitation experiments at REX-ISOLDE. Journal of Physics G: Nuclear and Particle Physics, 44 (6), 064009. doi:10.1088/1361-6471/aa6753
Published in
Journal of Physics G: Nuclear and Particle Physics
Authors
Grahn, Tuomas |
Pakarinen, Janne |
Gaffney, L. P. |
Algora, A. |
Bauer, C. |
Blazhev, A. |
Bree, N. |
Cocolios, T. E. |
De Witte, H. |
Diriken, J. |
Fernier, P. |
Hadyńska-Klȩk, K. |
Herzan, Andrej |
Huyse, M. |
Iwanicki, J. |
Jakobsson, Ulrika |
Jenkins, D. |
Kesteloot, N. |
Konki, Joonas |
Lannoo, B. |
Papadakis, P. |
Peura, Pauli |
Rahkila, Panu |
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. |
Zielińska, M.
Date
2017
Copyright
© 2017 IOP Publishing Ltd. This is a final draft version of an article whose final and definitive form has been published by IOP. Published in this repository with the kind permission of the publisher.

 
The neutron-deficient 196,198Pb isotopes have been studied in Coulombexcitation experiments employing the Miniball γ-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 196Pb and 198Pb nuclei have been measured for the first time. Values of B(E2) = 18.2 +4.8 −4.1 W.u. and B(E2) = 13.1 +4.9 −3.5 W.u., were obtained, respectively. The experiment sheds light on the development of collectivity when moving from the regime governed by the generalized 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.
Publisher
Institute of Physics Publishing
ISSN Search the Publication Forum
0954-3899
Keywords
Pb isotopes Coulomb-excitation experiment REX-ISOLDE
DOI
10.1088/1361-6471/aa6753
URI

http://urn.fi/URN:NBN:fi:jyu-201705182410

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