Coexistence of superdeformed shapes in Er-154 - art. no. 022502

Authors
Lagergren, K Cederwall, B Back, T Wyss, R Ideguchi, E Johnson, A Atac, A Axelsson, A Azaiez, F Bracco, A Cederkall, J Dombradi, Z Fahlander, C Gadea, A Million, B Petrache, CM Rossi-Alvarez, C Sampson, JA Sohler, D Weiszflog, M
Citation
K. Lagergren et al., Coexistence of superdeformed shapes in Er-154 - art. no. 022502, PHYS REV L, 8702(2), 2001, pp. 2502-NIL_32
Citations number
32
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
8702
Issue
2
Year of publication
2001
Pages
2502 - NIL_32
Database
ISI
SICI code
0031-9007(20010709)8702:2<2502:COSSIE>2.0.ZU;2-N
Abstract
A new superdeformed rotational band has been observed in Er-154 using the E uroball Ge detector array. The new band and the one previously observed can be understood as based on coexisting superdeformed structures at prolate a nd triaxial shapes, respectively. The observation resolves long-standing di fficulties in the theoretical interpretation of superdeformed states in Er- 154.