Identification of a high-K isomer in neutron-rich 185Ta

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A t 1/2 > 1 ms, high-K isomeric state feeding a strongly coupled rotational band has been identified following the deep inelastic reaction 238 92U +186 74W at 1600 MeV. Examination of γ-ray and X-ray data combined with a g-factor analysis derived from in-band branching ratios suggests the assignment of the new states to the neutron-rich nucleus 185 73Ta.

Received: 11 May 1999