Spectroscopy of the neutron-deficient isobars 163 Re and 163 W using tagging techniques
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Selective tagging techniques have been used to establish new band structures in the transitional isobars 163 Re and 163 W. These nuclei were produced in the 106 Cd( 60 Ni, xp yn ?) reaction at a bombarding energy of 270 MeV. Prompt 7 rays were detected at the target position using the JUROGAM spectrometer while recoiling ions were separated by the RITU separator and implanted into the GREAT spectrometer At low spin, the yrast band of 163 Re is shown to be a strongly coupled collective band based on a proton h 11/2 configuration. In 163 W, the decay path of the 13/2 + isomeric state to the ground state has been identified and negative parity structures based on the ground state established. © 2008 American Institute of Physics.