Microscopic Description of Anharmonic Gamma-Vibrations by Means of the Selfconsistent-Collective-Coordinate Method. II
- 1 July 1986
- journal article
- Published by Oxford University Press (OUP) in Progress of Theoretical Physics
- Vol. 76 (1) , 93-114
- https://doi.org/10.1143/ptp.76.93
Abstract
Microscopic structures of the mode-mode couplings between the RPA γ vibrations and the other Kπ=0+ and ±4+ modes, which are incorporated in the fourth-order collective Hamiltonian for anharmonic γ vibrations, are analysed in detail. The conditions of the subshell structure of the Nilsson orbits near the Fermi surface for enhancement of these mode-mode couplings are clarified. It is predicted that the properties of the double γ vibrational states with Kπ=0+ are especially sensitive to the dynamical anharmonicity effects arising from the mode-mode couplings. Numerical examples are presented for 164,166,168Er.Keywords
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