Microscopic Description of Anharmonic Gamma-Vibrations by Means of the Selfconsistent-Collective-Coordinate Method. III

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概要

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• Properties of the anharmonic gamma-vibrations and their (N,Z)-dependence are investigated in a wide region of the rare-earth deformed nuclei. The effective Hamiltonian which contains, in addition to the monopole-pairing plus (doubly-stretched) quadrupole-puadrupole interactions, the quadrupole-pairing interaction and the effective three-body force is used in the microscopic calculation. Dynamical anharmonicity effects arising from the mode-mode couplings are analysed in detail in relation to these effective interactions. The couplings between the gamma-vibrations and the pairing rotations are also taken into account in order to recover the nucleon-number conservation. The numerical calculation indicates that the properties of the anharmonic gamma-vibrations significantly change from one nucleus to another reflecting the subshell structure near the Fermi surface. A characteristic (N,Z)-dependence of the double gamma-vibrational states is predicted for some Dy and Er isotopoes.

• 理論物理学刊行会の論文
• 1987-09-25

著者

• 松柳 研一

  Theoretical Nuclear Physics Laboratory Riken Nishina Center:yukawa Institute For Theoretical Physics

• Matsuo M

  Department Of Physics Kyoto University

• Matsuo Masayuki

  Department Of Physics Faculty Of Science Niigata University

• Matsuyanagi Kenichi

  Theoretical Nuclear Physics Laboratory Riken Nishina Center

• Matsuyanagi Kenichi

  Department Of Physics Graduate School Of Science Kyoto University

• Matsuo Masayuki

  Department Of Materials Science Nagoya Institute Of Technology

• MATSUO MASAYUKI

  Graduate School of Science and Technology, Niigata University

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