Elsevier

Nuclear Physics A

Volume 420, Issue 1, 21 May 1984, Pages 83-95
Nuclear Physics A

Two- and three-quasiparticle states in the interacting boson model and a unified description of even- and odd- mass Hg isotopes

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Abstract

The formalism of the interacting boson-fermion approximation is extended to include two- and three-quasiparticle states. This model is used in a systematic study of the high-spin states in even- and odd-mass 189–198Hg isotopes. The positive-parity states in these nuclei are described by coupling i132 neutron states to an O(6) core, which offers a simple and parameter-free test of the boson-fermion interaction. Good agreement is obtained between the recent experimental results and the calculated energies, transition rates and g-factors.

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    Permanent address: Dept. of Physics, Osaka University, Toyonaka, Osaka, Japan.

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