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Shape Coexistence in the Neutron-Deficient Even-Even Hg182-188 Isotopes Studied via Coulomb Excitation.

Bree, N (author)
Wrzosek-Lipska, K (author)
Petts, A (author)
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Andreyev, A (author)
Bastin, B (author)
Bender, M (author)
Blazhev, A (author)
Bruyneel, B (author)
Butler, P A (author)
Butterworth, J (author)
Carpenter, M P (author)
Cederkäll, Joakim (author)
Lund University,Lunds universitet,Kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
Clément, E (author)
Cocolios, T E (author)
Deacon, A (author)
Diriken, J (author)
Ekström, Andreas (author)
Lund University,Lunds universitet,Kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
Fitzpatrick, C (author)
Fraile, L M (author)
Fransen, Ch (author)
Freeman, S J (author)
Gaffney, L P (author)
García-Ramos, J E (author)
Geibel, K (author)
Gernhäuser, R (author)
Grahn, T (author)
Guttormsen, M (author)
Hadinia, B (author)
Hadyńska-Kle K, K (author)
Hass, M (author)
Heenen, P-H (author)
Herzberg, R-D (author)
Hess, H (author)
Heyde, K (author)
Huyse, M (author)
Ivanov, O (author)
Jenkins, D G (author)
Julin, R (author)
Kesteloot, N (author)
Kröll, Th (author)
Krücken, R (author)
Larsen, A C (author)
Lutter, R (author)
Marley, P (author)
Napiorkowski, P J (author)
Orlandi, R (author)
Page, R D (author)
Pakarinen, J (author)
Patronis, N (author)
Peura, P J (author)
Piselli, E (author)
Rahkila, P (author)
Rapisarda, E (author)
Reiter, P (author)
Robinson, A P (author)
Scheck, M (author)
Siem, S (author)
Singh Chakkal, K (author)
Smith, J F (author)
Srebrny, J (author)
Stefanescu, I (author)
Tveten, G M (author)
Van Duppen, P (author)
Van de Walle, J (author)
Voulot, D (author)
Warr, N (author)
Wenander, F (author)
Wiens, A (author)
Wood, J L (author)
Zielińska, M (author)
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 (creator_code:org_t)
2014
2014
English.
In: Physical Review Letters. - 1079-7114. ; 112:16
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • 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 Hg182-188 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 Hg182,184. 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.

Subject headings

NATURVETENSKAP  -- Fysik -- Subatomär fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Subatomic Physics (hsv//eng)

Publication and Content Type

art (subject category)
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