Comparative Study of Octupole Excitations on Superdeformed States in ^<32>S, ^<36>S, ^<40>Ca and ^<50>S(Nuclear Physics)

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概要

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• By means of an RPA calculation based on the deformed Woods-Saxon potential in the coordinate-mesh representation, we make a comparative study of octupole excitations built on superdeformed states in the ^<40>Ca region and those in ^<50>S. For the N=Z stable nuclei, ^<32>S and ^<40>Ca, enhancement of octupole transition strengths results from the coherence of the proton and neutron excitations. Contrastingly, for ^<50>S close to the neutron drip line, we find that the low-lying state created by the excitation of a single neutron from a loosely bound low Ω state to a high Ω resonance state acquires an extremely large transition strength. A similar enhancement of the octupole strength is also found in oblately deformed ^<40>Mg close to the neutron drip line.

• 理論物理学刊行会の論文
• 2005-06-25

著者

• 松柳 研一

  理研仁科セ

• 松柳 研一

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

• MATSUYANAGI Kenichi

  Department of Physics, Graduate School of Science, Kyoto University

• Matsuyanagi Kenichi

  Department Of Physics Graduate School Of Science Kyoto University

• YAMAGAMI Masayuki

  Theoretical Nuclear Physics Laboratory, RIKEN Nishina Center

• YAMAGAMI Masayuki

  Heavy Ion Nuclear Physics Laboratory, RIKEN

• Yoshida Kenichi

  Department Of Forensic Medicine Graduate School Of Medicine University Of Tokyo

• Yoshida Kenichi

  Theoretical Nuclear Physics Laboratory, RIKEN Nishina Center

• MATSUYANAGI Kenichi

  Department of Physics, Kyoto University

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