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Low-spin states of doubly odd 184Au
Institut de Physique Nucléaire, IN2P3-CNRS/Université Paris-Sud, F-91406, Orsay Cedex, France
2 Laboratoire de Physique Subatomique et de Cosmologie, IN2P3-CNRS/Université Joseph Fourier, F-38026, Grenoble Cedex, France
3 Institut de Physique Nucléaire, IN2P3-CNRS/Université Claude Bernard, F-69621, Villeurbanne Cedex, France
4 Institut de Recherches Subatomiques, IN2P3-CNRS, F-67037, Strasbourg, France
5 Institute of Experimental Physics, Warsaw University, ul. Hoza 69, PL-00-681, Warsaw, Poland
6 CERN, 1211, Genève 23, Switzerland
* e-mail: email@example.com
Accepted: 12 April 2005
Published online: 22 June 2005
Low-spin states of 184Au have been studied using the β+/EC decay of 184Hg. γ-ray and conversion-electron singles spectra were recorded with 184Hg mass-separated sources. For γ-γ-t and X-γ-t coincidence measurements, mercury nuclei were produced in the 148Sm + 40Ar reaction and transported by a He-jet system. The electron spectra were recorded from 184Hg sources produced at ISOLDE. A level scheme of 184Au including 48 transitions is proposed. The experimental results are interpreted in the frame of a semi-microscopic axial-rotor-plus-two-quasiparticle model developed in the context of the HF+BCS approximation.
PACS: 21.10.-k Properties of nuclei; nuclear energy levels – / 23.20.Nx Internal conversion and extranuclear effects – / 23.20.Lv γ transitions and level energies – / 27.70.+q 150 ⩽ A ⩽ 189 –
© Società Italiana di Fisica and Springer-Verlag, 2005