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Deformation properties of the neutron-deficient odd-A Pt and Hg nuclei |
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| Authors: | J. Sauvage J. Libert B. Roussière D. Verney L. Cabaret J. E. Crawford J. Genevey G. Huber F. Ibrahim F. Le Blanc J. K. P. Lee J. Oms J. Pinard |
| Affiliation: | 5. Institut de Physique Nucléaire, IN2P3-CNRS, Orsay, France 1. Laboratoire Aimé Cotton, Orsay, France 2. Physics Department, McGill University, Montréal, Canada 3. Institut des Sciences Nucléaires, IN2P3-CNRS/UJF, Grenoble, France 4. Institut für Physik der Universit?t Mainz, Germany |
| Abstract: | Nuclear and atomic spectroscopy measurements have provided a great number of data on the neutron-deficient Pt and Hg nuclei. The odd-A Pt and Hg with A<186 have a prolate shape, and the even-even isotopes have a triaxial shape, while the nuclear shape of the odd-A Pt and Hg with A>186 is still an open question. The energy of the low-lying levels and the nuclear moments have been calculated in the framework of a semimicroscopic “axial-rotor + 1 quasiparticle” coupling model. The predictions are compared with the experimental data and discussed. The results strongly suggest a prolate shape for the negative-parity low-lying states of the odd-A 187–191Pt and 187–193Hg isotopes. |
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