Theory of Collective Excitations in Spherical Odd-Mass Nuclei. I : Basic Ideas and Concept of Dressed Three-Quasi-Particle Modes

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概要

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• A new systematic theory of describing the collective excitations in spherical odd-mass nuclei is developed. The theory can be regarded as a direct extension of the conventional quasi-particle-new-Tamm-Dancoff method (i.e. the quasi-particle-random phase approximation) for spherical even-mass nuclei into the case of spherical odd-mass nuclei. In order to construct properly the theory within the framework of the quasi-particle-new-Tamm-Dancoff method, it is shown to be decisive to introduce a new concept which precisely specifies the "dressed" three-quasi-particle modes. The new concept is recognized in connection with the "quasi-spin space" which has been introduced through the quasi-spin formalism for the pairing correlations. It is not the purpose of this paper, part I, to go into a clear-cut formulation of the theory and into detailed quantitative calculations, but rather to put an emphasis on the explanation of basic ideas.

• 理論物理学刊行会の論文
• 1971-03-25

著者

• MATSUYANAGI Kenichi

  Department of Physics, Graduate School of Science, Kyoto University

• Kuriyama Atsushi

  Department Of Physics Kyushu University

• Kuriyama Atsushi

  Department Of Physics Kyoto University

• Matsuyanagi Kenichi

  Department Of Physics Graduate School Of Science Kyoto University

• Marumori Toshio

  Department Of Physics Science University Of Tokyo

• Marumori Toshio

  Department Of Physics Kyoto University

• MARUMORI Toshio

  Department of Physics, Kyushu University

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