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dc.contributor.authorKanada-En'Yo, Yoshiko
dc.contributor.authorShikata, Yuki
dc.contributor.alternative延與, 佳子
dc.contributor.alternative四方, 悠貴
dc.description.abstractIsoscalar (IS) monopole and dipole excitations in ¹⁶O were investigated by the method of shifted basis antisymmetrized molecular dynamics combined with the generator coordinate method. Significant strengths of the IS monopole and dipole transitions were obtained in the low-energy region below the giant resonances. In addition to the compressive mode, which mainly contributes to the high-energy strengths for the IS dipole giant resonance, we obtained a variety of low-energy dipole modes such as the vortical dipole mode in the 1₁⁻ state of the vibrating tetrahedral 4α and the ¹²C + α cluster structure in the 1₂⁻ state. The 1₁⁻ state contributes to the significant low-energy strength of the IS dipole transition as 5% of the energy-weighted sum rule, which describes well the experimental data observed by the α inelastic scattering.
dc.publisherAmerican Physical Society
dc.rights©2019 American Physical Society
dc.titleIsoscalar dipole excitations in ¹⁶O
dc.type.niitypeJournal Article
dc.identifier.jtitlePhysical Review C
dc.addressDepartment of Physics, Kyoto University
dc.addressDepartment of Physics, Kyoto University
dc.identifier.kaken18K03617 / 18J20926
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