Cluster-shell competition in light nuclei

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概要

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• We demonstrate whether the cluster structure dissolves or remains when the shell-model-like model space isintroduced in addition to the cluster model space in light nuclei. Although the binding energies of 8Be, 10Be,and 10B become larger by about 1–2 MeV by adding shell-model-like basis states to the α+α+N+N+ ・・・basisstates, the α-α structure is a dominant configuration of the ground states. However, α-breaking wave functionsstrongly mix in 12C, and the decrease of the energy from the 3α configuration by about 6 MeV is a clue toresolving a long-standing problem of the binding energies of 12C and 16O. The improved version of antisymmetrizedmolecular dynamics (AMD), AMD superposition of selected snapshots (AMD triple-S), is used toshow the cluster-shell competition of these nuclei.

• American Physical Societyの論文
• 2004-11-05

著者

• Okabe Shigeto

  Center For Information Processing Education Hokkaido University

関連論文

• 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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