Triaxial deformation in 10Be

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概要

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• The triaxial deformation in 10Be is investigated using a microscopic α+α+n+n model. The states of two valence neutrons are classified based on the molecular-orbit (MO) model, and the π orbit is introduced about the axis connecting the two α clusters for the description of the rotational bands. There appear two rotational bands comprised mainly of Kπ=0+ and Kπ=2+, respectively, at low excitation energy, where the two valence neutrons occupy Kπ=3/2- or Kπ=1/2- orbits. The triaxiality and the K mixing are discussed in connection to the molecular structure, particularly to the spin-orbit splitting. The extent of the triaxial deformation is evaluated in terms of the electromagnetic transition matrix elements (Davydov-Filippov model, Q-invariant model) and density distribution in the intrinsic frame. The obtained values turned out to be γ=15°–20°.

• American Physical Societyの論文
• 2002-03-11

著者

• Okabe Shigeto

  Center For Information Processing Education Hokkaido University

• OTSUKA T.

  Graduate School of Science, University of Tokyo

関連論文

• M1 Transitions in Odd-Odd, Deformed N = Z Nuclei
• M1 Transitions in Odd-Odd, Deformed N=Z Nuclei
• Symmetry of Composite Particles in Scattering(Microscopic Cluster Models of Light Nuclei and Related Topics)
• The Exotic Clustering and Nucleon-Nucleon Correlations in Light Neutron-Rich Nuclei
• The Exotic Clustering and Nucleon-Nucleon Correlations in Light Neutron-Rich Nuclei
• Molecular-Orbital Structure in Light Neutron-Rich Nuclei
• Coupled-Channels Study of the Nuclear Rainbow Phenomena for the ^O + ^O System
• Cluster-shell competition in light nuclei
• Equilateral-Triangular Shape in 14C
• Triaxial deformation in 10Be
• Important role of the spin-orbit interaction in forming the 1/2+ orbital structure in Be isotopes

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