On a RPA method with angular momentum projection |
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Authors: | Dr. T. Kammuri S. Kusuno |
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Affiliation: | 1. Institut für Kernphysik der Kernforschungsanlage Jülich, Deutschland 2. Department of Physics, University of Osaka, Toyonaka, J-560, Osaka, Japan
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Abstract: | In view of projecting the angular momentum eigenstates out of the intrinsic RPA states, we first study linear relations between deformed and spherical phonons. By use of these relations, the deformed RPA Hamiltonian can be expressed in terms of the spherical phonons in the form of a displaced harmonic oscillator. The angular momentum projection can be applied to an intrinsic RPA state determined by the reduced Hamiltonian, and the correspondence with the macroscopic deformed phonon model of Lipaset al. can be done at this stage. Two important parameters, the constant term in the linear relations and the strength of the spherical phonon Hamiltonian, are evaluated and compared with the best-fit values obtained by Lipaset al. |
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