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
• Octupole Vibrations Built on Superdeformed Rotational Bands : Progress Letters
• Quasiparticle-Vibration Couplings in Rotating Triaxial Odd-A Nuclei : Nuclear Physics
• Signature Dependence of M1 and E2 Transitions in Rotating Triaxial Odd-A Nuclei
• Role of Particle-Hole Interaction in the Four-Particle-Four-Hole States in ^O
• Two-Octupole-Phonon States in ^Gd
• Non-Unitary Realization of the Selfconsistent Collective-Coordinate Method : Nuclear Physics
• A Microscopic Theory of the So-Called "Two-Phonon" States in Even-Even Nuclei. II : Formulation
• Dyson Boson Mapping and Shell-Model Calculations for Even-Even Nuclei(Nuclear Physics)
• Chapter 2 Outline of the Mode-Mode Coupling Theory
• A New Method for Microscopic Description of the So-Called "Many-Phonon" States in Spherical Even-Even Nuclei. I
• Structure of the Anomalous 0^ Excited States in Spherical Even-Even Nuclei with N or Z≈ 40
• In What Sense Does the Phonon Picture Persist in Spherical Even-Even Nuclei?
• Axially Asymmetric Deformation and Its Stability in sd-Shell Nuclei
• Quasiparticle-Shell-Model Calculations of So-Called Two-Phonon States in Cd and Sn Isotopes
• Nuclear Deformation and Nuclear Force. II
• Chapter 5 Dynamical Interplay between Pairing and Quadrupole Correlations in Odd-Mass Nuclei
• Chapter 4 Dynamical Interplay between Pairing and Quadrupole Correlations : Anharmonicity in the So-Called Two-Phonon Triplet States in Medium-Heavy Nuclei
• Chapter 3 A New Microscopic Method for Describing the Elementary Modes of Excitation in the Intrinsic Subspace : Dressed n-Quasiparticle Modes and Multi-Phonon Excitation
• Dynamical Anharmonicity Effects in Low-Lying Negative-Parity States of Odd-Mass Sn Isotopes
• On the Four-Body Correlations in Light Nuclei : Reduction of the Effective Interaction due to the Pauli Principle
• Non-Unitary Boson Mapping and Its Application to Nuclear Collective Motions
• Alpha-Like Spatial Four-Body Correlations in Light Nuclei : Vertically-Truncated-Subspace Shell Model for the Core Plus Four-Particle System
• Test of Validity of the Hermitian Treatment of the Dyson Boson Mapping
• Convergence of Boson Expansion Theory : Nuclear Physics
• A Comment on the New Formulation of a Many-Level Shell Model
• A New Formulation of a Many-Level Shell Model : A Method of Constructing Orthonormal Basis States Analytically
• A Non-Linear Extension of the Quasiparticle Random-Phase Approximation for Description of Nuclear Collective Motions : Application of Sawada's Attached Field Method
• Magnetic Properties of Precession Modes Built on High-K Multi-Quasiparticle States in ^W
• Nuclear Wobbling Motion from Microscopic Viewpoint (原子核集団運動の非線形動力学(研究会報告))
• Mass Tensor for Decay out of Superdeformed Bands
• Incipient Triaxial Deformations of the Rotation-Aligned Bands : Equilibrium Shapes Determined by the Isotropic Velocity Distribution Condition : Nuclear Physics
• Diabatic Quasiparticle Representation for Rotating Shell Model
• Monopole and Quadrupole Giant Resonances in Rotating Triaxially Deformed Nuclei. II : A Microscopic Description of the Isoscalar and Isovector Modes : Nuclear Physics
• Tilted Axis Cranking Applied to a System of One-Quasiparticle Coupled to a Triaxial Rotor : Nuclear Physics
• High-Spin Anomaly of Gamma Band and Rotation-Alignment Effects in ^Er
• Rotational Frequency Dependence of Gamma Vibration and Pairing Potential in ^Er
• Microscopic Calculation of the Wobbling Excitations Employing the Woods-Saxon Potential as a Nuclear Mean-Field(Nuclear Physics)
• Efficient Method to Perform Quantum Number Projection and Configuration Mixing for Most General Mean-Field States(Nuclear Physics)
• Systematic analysis of wobbling motion in the Hf, Lu region(International Workshop on Nuclear Structure-New Pictures in the Extended Isospin Space(NS07)-)
• Efficient Method for Quantum Number Projection and Its Application to Tetrahedral Nuclear States(YKIS2011 papers, Frontier Issues in Physics of Exotic Nuclei)
• Deformation Effect on Total Reaction Cross Sections for Neutron-Rich Ne-Isotopes(YKIS2011 papers, Frontier Issues in Physics of Exotic Nuclei)
• Monopole and Quadrupole Giant Resonances in Rotating Triaxially Deformmed Nuclei : Nuclear Physics
• Convergence of Boson Expansion Theory : Nuclear Physics
• Present Status of the Microscopic Study of Low-Lying Collective States in Spherical and Transitional Nuclei (Microscopic Study of Low-Lying Collective States in Spherical and Transitional Nuclei--Dynamical Interplay between Pairing and Quadrupole Modes)
• Deformation Effect on Total Reaction Cross Sections for Neutron-Rich Ne-Isotopes
• Efficient Method for Quantum Number Projection and Its Application to Tetrahedral Nuclear States

もっと見る 閉じる

スポンサーリンク