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Shape coexistence at high spin in187Au |
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| Authors: | C. Bourgeois M. G. Porquet N. Perrin H. Sergolle F. Hannachi G. Bastin F. Beck |
| Affiliation: | 1. Institut de Physique Nucléaire, Orsay, France 2. Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, Orsay, France 3. Centre de Recherches Nucléaires, Strasbourg, France |
| Abstract: | High-spin states in187Au have been populated in the172Yb(19F, 4n) reaction and studied with in-beam spectroscopic techniques using the “Château de Cristal” 4π-multidetector array. A comprehensive level scheme of187Au has been established. Experimental band crossing frequencies and gains in alignment were deduced. Shape coexistence in187Au, well established at low spin, is found to survive up to spin 57/2, and manifests itself through well separated oblate and prolate structures. |
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