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Transition to non-collective states at high spin in 124Xe |
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| Authors: | A Al-Khatib H Hübel P Bringel C Engelhardt A Neußer-Neffgen G B Hagemann C R Hansen B Herskind G Sletten A Bracco F Camera G Benzoni P Fallon R M Clark M P Carpenter R V F Janssens T L Khoo T Lauritsen P Chowdhury H Amro A K Singh R Bengtsson |
| Institution: | 1. Helmholtz-Institut für Strahlen- und Kernphysik, Universit?t Bonn, Nu?allee 14-16, D-53115, Bonn, Germany 2. Niels Bohr Institute, Blegdamsvej 17, DK-2100, Copenhagen, Denmark 3. Dipartimento di Fisica, Università di Milano and INFN, I-20133, Milano, Italy 4. INFN, Sezione di Milano, I-20133, Milano, Italy 5. Lawrence Berkeley National Laboratory, 94720, Berkeley, CA, USA 6. Argonne National Laboratory, 60439, Argonne, IL, USA 7. Yale University, New Haven, CT, USA 8. Indian Institute of Technology, IN-721302, Kharagpur, India 9. Lund Institute of Technology, Lund, Sweden |
| Abstract: | Excited states in 124Xe were populated in the reaction 82Se(48Ca, 6n)124Xe and γ -ray coincidence relationships were measured with the Gammasphere spectrometer. Two new bands are observed and several of the previously known bands are extended in the high- as well as in the low-spin region. Two irregular high-spin structures are also added. The irregularities are a fingerprint of a transition from collective to non-collective behaviour. Configuration assignments to the new structures are proposed on the basis of systematics and by comparing experimental properties with calculations within the framework of the cranking model. |
| Keywords: | 21 60 -n Nuclear structure models and methods 23 20 Lv γ transitions and level energies 27 60 +j 90 ⩽ A ⩽ 149 |
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