Evidence for a Smooth Onset of Deformation in the Neutron-Rich Kr Isotopes

Publication Type
Journal Article
Year of Publication
Albers, M.
Albers, M.
Nomura, K.
Blazhev, A.
Mucher, D.
Bastin, B.
Bauer, C.
Bernards, C.
Bettermann, L.
Bildstein, V.
Butterworth, J.
Cappellazzo, M.
Cederkall, J.
Cline, D.
Darby, I.
Das Gupta, S.
Daugas, J. M.
Davinson, T.
De Witte, H.
Diriken, J.
Filipescu, D.
Fiori, E.
Fransen, C.
Gaffney, L. P.
Georgiev, G.
Gernhauser, R.
Hackstein, M.
Heinze, S.
Hess, H.
Huyse, M.
Jenkins, D.
Konki, J.
Kowalczyk, M.
Krucken, R.
Litzinger, J.
Lutter, R.
Marginean, N.
Mihai, C.
Moschner, K.
Napiorkowski, P.
Singh, B. S. N.
Nowak, K.
Otsuka, T.
Pakarinen, J.
Pfeiffer, M.
Radeck, D.
Reiter, P.
Rigby, S.
Robledo, L. M.
Rodriguez-Guzman, R.
Rudigier, M.
Sarriguren, P.
Scheck, M.
Seidlitz, M.
Siebeck, B.
Simpson, G.
Thole, P.
Thomas, T.
Van de Walle, J.
Van Duppen, P.
Vermeulen, M.
Voulot, D.
Wadsworth, R.
Wenander, F.
Wimmer, K.
Zell, K. O.
Zielinska, M.
Name of Publication
Physical Review Letters
Date Published
Short Title
Evidence for a Smooth Onset of Deformation in the Neutron-Rich Kr Isotopes
Accession Number
ISBN Number

The neutron-rich nuclei Kr-94,Kr-96 were studied via projectile Coulomb excitation at the REX-ISOLDE facility at CERN. Level energies of the first excited 2(+) states and their absolute E2 transition strengths to the ground state are determined and discussed in the context of the E(2(1)(+)) and B(E2;2(1)(+)-> 0(1)(+)) systematics of the krypton chain. Contrary to previously published results no sudden onset of deformation is observed. This experimental result is supported by a new proton-neutron interacting boson model calculation based on the constrained Hartree-Fock-Bogoliubov approach using the microscopic Gogny-D1M energy density functional.

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