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Shape coexistence in187Hg |
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| Authors: | F. Hannachi G. Bastin M. G. Porquet C. Schück J. P. Thibaud C. Bourgeois L. Hildingsson D. Jerrestam N. Perrin H. Sergolle F. A. Beck T. Byrski J. C. Merdinger |
| Affiliation: | 1. Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, F-91406, Orsay, France 2. Institut de Physique Nucléaire, F-91406, Orsay, France 4. Centre de Recherches Nucléaires, F-67037, Strasbourg, France |
| Abstract: | Excited states of187Hg have been investigated via the164Dy (28Si,5n) reaction by means of in- beam gamma-ray spectroscopy using the multidetector 4π away “Ckāteau de. Cristal”. Different bands were populated up to spin I- 45/2. Coexistence of both prolate and oblate structures is observed for the first time in an odd- A Hg isotope. The crossing of aligned and strongly coupled sequences of levels built on the vi13/2 orbital infers the near degeneracy of oblate and prolate structures in187Hg. |
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