Treatment of Nucleon-Number Conservation in the Selfconsistent Collective-Coordinate Method : Coupling between Large-Amplitude Collective Motion and Pairing Rotation : Nuclear Physics

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概要

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• The selfconsistent collective-coordinate (SCC) method is extended in order to microscopically describe large-amplitude collective motions in superconducting nuclei. To restore the nucleon-number conservation violated by the use of the quasiparticle representation, the collective variables representing the pairing rotation are explicitly introduced. The coupling between the large-amplitude collective motion and the pairing rotation is treated in such a way that unphysical deviation of the average nucleon number from the ground-state value is eliminated automatically. It is shown that the basic equations of the extended version of the SCC method can be solved by an iterative method similar to the well-known (η-*,η) expansion. Applicability of the proposed method is investigated for an O(4) model.

• 理論物理学刊行会の論文
• 1986-08-25

著者

• Matsuo M

  Kyoto Univ. Kyoto

• Matsuo Masayuki

  Department Of Physics Faculty Of Science Niigata 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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