Title: Shape coexistence in the neutron-deficient even-even 182−188Hg isotopes studied via Coulomb excitation
Authors: Bree, N. ×
Wrzosek-Lipska, K.
Petts, A.
Andreyev, A.
Bastin, B.
Bender, M.
Blazhev, A.
Bruyneel, B.
Butler, P. A.
Butterworth, J.
Carpenter, M. P.
Cederkall, J.
Clement, E.
Cocolios, Thomas Elias
Deacon, A.
Diriken, J.
Ekstrom, A.
Fitzpatrick, C.
Fraile, L. M.
Fransen, Ch.
Freeman, S. J.
Gaffney, Liam
Garcıa-Ramos, J. E.
Geibel, K.
Gernhauser, R.
Grahn, T.
Guttormsen, M.
Hadinia, B.
Hadynska-Klek, K.
Hass, M.
Heenen, P.H.
Herzberg, R.D.
Hess, H.
Heyde, K.
Huyse, Mark
Ivanov, O.
Jenkins, D. G.
Julin, R.
Kesteloot, N.
Kroll, Th.
Krucken, R.
Larsen, A. C.
Lutter, R.
Marley, P.
Napiorkowski, P. J.
Orlandi, R.
Page, R. D.
Pakarinen, J.
Patronis, N.
Peura, P. J.
Piselli, E.
Rahkila, P.
Rapisarda, E.
Reiter, P.
Robinson, A. P.
Scheck, M.
Siem, S.
Singh Chakkal, K.
Smith, J. F.
Srebrny, J.
Stefanescu, I.
Tveten, G. M.
Van Duppen, Piet
Van de Walle, J.
Voulot, D.
Warr, N.
Wenander, F.
Wiens, A.
Wood, J. L.
Zielinska, M. #
Issue Date: 23-Apr-2014
Publisher: American Physical Society
Series Title: Physical Review Letters vol:112 issue:16 pages:1-5
Article number: 162701
Abstract: Coulomb-excitation experiments to study electromagnetic properties of radioactive even-even Hg isotopes were performed with 2.85 MeV/nucleon mercury beams from REX-ISOLDE. Magnitudes and relative signs of the reduced E2 matrix elements that couple the ground state and low-lying excited states in 182−188Hg were extracted. Information on the deformation of the ground and the first excited 0+ states was deduced using the quadrupole sum rules approach. Results show that the ground state is slightly deformed and of oblate nature, while a larger deformation for the excited 0+ state was noted in 182,184Hg. The results are compared to beyond mean field and interacting-boson based models and interpreted within a two-state mixing model. Partial agreement with the model calculations was obtained. The presence of two different structures in the light even-mass mercury isotopes that coexist at low excitation energy is firmly established.
ISSN: 0031-9007
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Nuclear and Radiation Physics Section
× corresponding author
# (joint) last author

Files in This Item:
File Description Status SizeFormat
letter-hg-exp-LL13836.pdf Published 133KbAdobe PDFView/Open


All items in Lirias are protected by copyright, with all rights reserved.

© Web of science