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High-spin structure in154Er |
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| Authors: | F. A. Beck J. Dudek B. Haas J. C. Merdinger A. Nourreddine Y. Schutz J. P. Vivien Ph Hubert D. Dassié G. Bastin L. Nguyen J. P. Thibaud W. Nazarewicz |
| Affiliation: | 1. Centre de Recherches Nucléaires, Strasbourg, France 2. Centre d'Etudes Nucléaires de Bordeaux-Gradignan, Gradignan, France 3. Centre de Spectroscopie Nucléaire et de Spectrométrie de masse, Orsay, France 4. Lund Institute of Technology, Lund, Sweden 5. Institute of Physics, Technical University of Warsaw, Warsaw, Poland |
| Abstract: | High spin states in the nucleus154Er have been reinvestigated using the123Sb(35Cl, 4n) reaction and a variety of spectroscopic techniques including excitation functions,γ-γ coincidences,γ angular distribution and linear polarization measurements. From the measured energies, relative intensities and transition multipolarities a new level scheme has been deduced up to an excitation energy of ～12 MeV and spin 36. An interpretation of the experimental results is given in terms of the deformed Woods-Saxon orbitals. Gigantic backbending (superdeformation) effect is studied theoretically within the cranking model. |
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