Two-Octupole-Phonon States in ^<146,148>Gd
スポンサーリンク
概要
- 論文の詳細を見る
The so-called "two-octupole-phonon states" in ^<146,148>Gd are theoretically analyzad by using the Dyson boson mapping method. In our analyses, the free ground state of ^<146>Gd is treated as doubly closed shell since Z=64 is rather good subshell closure. The starting collective monopole pairing phonons for ^<146>Gd. Addintionally correlated particle-pair modes with J≠0 are included in the multi-phonon space for ^<148>Gd. The eddective Hamiltonian used is constituted by a Woods-Saxon-type single-particle potential, an octupole-octupole force for particle-hole modes and a surface-delta interaction for particle-pair and hole-pair modes. The numerical calculation can considerably wall reproduce the octupole collectivity shown by experiments for ^<146,148>Gd. It is shown that the Dyson boson mapping method is useful for such a complicated system as ^<148>Gd.
- 理論物理学刊行会の論文
- 1996-06-25
著者
-
SHIMIZU Yoshifumi
Department of Physics, Kyushu University
-
TAKADA Kenjiro
Department of Physics, Kyushu University
-
Takada K
Kyushu Univ. Fukuoka Jpn
-
Takada Kenjiro
Department Of Physics Kuushu University
-
Shimizu Yoshifumi
Department Of Physics Graduate School Of Sciences Kyushu University
関連論文
- Diabatic Mean-Field Description of Rotational Bands in Terms of the Selfconsistent Collective Coordinate Method
- Soft Octupole Vibrations with K=0 and K≠0 Built on Superdeformed Rotational Bands and Static Pairing Correlations : Nuclear Physics
- Octupole Vibrations with K=1 and 2 in Superconducting, Superdeformed Nuclei : Nuclear Physics
- Residual Interactions between Aligned Quasiparticles and Pairing Deformation Changes in ^Yb and ^Er
- Tunneling in High-K Isomeric Decays
- Origin of Prolate Dominance of Nuclear Deformation
- Origin of Prolate Dominance of Nuclear Deformation
- Four-Body Correlations in Light Nuclei : The Interaction between a Four-Body Mode and a Single-Hole Mode
- Interplay of Gamma-Vibrations and Aligned-Quasiparticles at High-Spin Yrast Region : Nuclear Physics
- An Extension of the Rotating Shell Model and Its Application to ^Er