Relativistic Coulomb excitation of Kr 88

K. Moschner, A. Blazhev, J Jolie, N. Warr, P. Boutachkov, P. Bednarczyk, K Sieja, A. Algora, F. Ameil, M. A. Bentley, S. Brambilla, N. Braun, F Camera, J. Cederkäll, A. Corsi, M. Danchev, D.D. DiJulio, C Fahlander, J Gerl, A. GiazP. Golubev, M. Górska, J Grebosz, T. Habermann, M. Hackstein, R. Hoischen, I Kojouharov, N Kurz, N. MǍrginean, E. Merchán, Th Möller, F. Naqvi, B.S. Nara Singh, C. Nociforo, N. Pietralla, S. Pietri, Z.S. Podolyák, A. Prochazka, M Reese, P. Reiter, M. Rudigier, D Rudolph, T. Sava, H Schaffner, L. Scruton, J. Taprogge, T. David Thomas, H Weick, a wendt, O. Wieland, H-J. Wollersheim

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To investigate the systematics of mixed-symmetry states in N=52 isotones, a relativistic Coulomb excitation experiment was performed during the PreSPEC campaign at the GSI Helmholtzzentrum für Schwerionenforschung to determine E2 transition strengths to 2+ states of the radioactive nucleus Kr88. Absolute transition rates could be measured towards the first and third 2+ states. For the latter a mixed-symmetry character is suggested on the basis of the indication for a strong M1 transition to the fully symmetric 21+ state, extending the knowledge of the N=52 isotones below Z=40. A comparison with the proton-neutron interacting boson model and shell-model predictions is made and supports the assignment.

Original languageEnglish
Article number054323
JournalPhysical Review C
Issue number5
Publication statusPublished - 28 Nov 2016

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