Coexistence of Superdeformed Shapes in 154Er

K. Lagergren, B. Cederwall, T. Bäck, R. Wyss, E. Ideguchi, A. Johnson, A. Ataç, A. Axelsson, F. Azaiez, A. Bracco, J. Cederkäll, Zs. S. Dombrádi, C. Fahlander, A. Gadea, B. Million, C. M. Petrache, C. Rossi-Alvarez, J. A. Sampson, D. Sohler, M. Weiszflog

Research output: Contribution to journalArticle


A new superdeformed rotational band has been observed in 154Er using the Euroball Ge detector array. The new band and the one previously observed can be understood as based on coexisting superdeformed structures at prolate and triaxial shapes, respectively. The observation resolves long-standing difficulties in the theoretical interpretation of superdeformed states in 154Er.

Original languageEnglish
JournalPhysical Review Letters
Issue number2
Publication statusPublished - Jun 25 2001

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Lagergren, K., Cederwall, B., Bäck, T., Wyss, R., Ideguchi, E., Johnson, A., Ataç, A., Axelsson, A., Azaiez, F., Bracco, A., Cederkäll, J., Dombrádi, Z. S., Fahlander, C., Gadea, A., Million, B., Petrache, C. M., Rossi-Alvarez, C., Sampson, J. A., Sohler, D., & Weiszflog, M. (2001). Coexistence of Superdeformed Shapes in 154Er. Physical Review Letters, 87(2).