Microscopic derivation of five-dimensional collective Hamiltonian of large-amplitude quadrupole motion: application to shape coexistence in proton-rich Se isotopes

2010 ◽  
Author(s):  
Nobuo Hinohara ◽  
Koichi Sato ◽  
Takashi Nakatsukasa ◽  
Masayuki Matsuo ◽  
Akira Ozawa ◽  
...  
Keyword(s):  
Large Amplitude ◽  
Shape Coexistence ◽  
Microscopic Derivation ◽  
Collective Hamiltonian

MICROSCOPIC APPROACH TO ADIABATIC LARGE-AMPLITUDE QUADRUPOLE COLLECTIVE DYNAMICS IN Se ISOTOPES

2010 ◽  
Vol 25 (21n23) ◽  
pp. 1796-1799 ◽  
Author(s):  
NOBUO HINOHARA ◽  
KOICHI SATO ◽  
TAKASHI NAKATSUKASA ◽  
MASAYUKI MATSUO
Keyword(s):  
Large Amplitude ◽  
Shape Coexistence ◽  
Microscopic Approach ◽  
Microscopic Method ◽  
Coordinate Method ◽  
Prolate Shape ◽  
Anharmonic Vibrations ◽  
Self Consistent ◽  
Collective Coordinate ◽  
Collective Hamiltonian

We develop an efficient microscopic method of deriving the five-dimensional quadrupole collective Hamiltonian on the basis of the adiabatic self-consistent collective coordinate method. We illustrate its usefulness by applying it to the oblate-prolate shape coexistence/mixing phenomena and anharmonic vibrations in Se isotopes.

scholarly journals Microscopic derivation of the quadrupole collective Hamiltonian for shape coexistence/mixing dynamics

2016 ◽  
Vol 43 (2) ◽  
pp. 024006 ◽  
Author(s):  
Kenichi Matsuyanagi ◽  
Masayuki Matsuo ◽  
Takashi Nakatsukasa ◽  
Kenichi Yoshida ◽  
Nobuo Hinohara ◽  
...  
Keyword(s):  
Shape Coexistence ◽  
Microscopic Derivation ◽  
Mixing Dynamics ◽  
Collective Hamiltonian

PHENOMENOLOGICAL ANALYSIS OF THE OBLATE-PROLATE SYMMETRY BREAKING IN TRIAXIAL DEFORMATION DYNAMICS

2010 ◽  
Vol 25 (21n23) ◽  
pp. 2018-2019
Author(s):  
KOICHI SATO ◽  
NOBUO HINOHARA ◽  
TAKASHI NAKATSUKASA ◽  
MASAYUKI MATSUO
Keyword(s):  
Simple Model ◽  
Symmetry Breaking ◽  
Phenomenological Analysis ◽  
Numerical Results ◽  
Shape Coexistence ◽  
Triaxial Deformation ◽  
Moments Of Inertia ◽  
Prolate Shape ◽  
Deformation Dynamics ◽  
Collective Hamiltonian

From a viewpoint of oblate-prolate symmetry and its breaking, we propose a simple model based on the quadrupole collective Hamiltonian to study dynamics of triaxial deformation in shape coexistence phenomena. The numerical results suggest that the oblate-prolate symmetry breaking in the rotational moments of inertia can play an important role for the oblate-prolate shape coexistence as well as that in the collective potential.

Large-amplitude quadrupole collective dynamics of shape coexistence phenomena in proton-rich Se and Kr isotopes

2010 ◽  
Author(s):  
Nobuo Hinohara ◽  
Koichi Sato ◽  
Takashi Nakatsukasa ◽  
Masayuki Matsuo ◽  
Hajime Susa ◽  
...  
Keyword(s):  
Large Amplitude ◽  
Shape Coexistence ◽  
Collective Dynamics

MICROSCOPIC ANALYSIS OF SHAPE MIXING IN LOW-LYING STATES OF PROTON-RICH Kr ISOTOPES

2010 ◽  
Vol 25 (21n23) ◽  
pp. 2020-2021
Author(s):  
KOICHI SATO ◽  
NOBUO HINOHARA ◽  
TAKASHI NAKATSUKASA ◽  
MASAYUKI MATSUO
Keyword(s):  
Microscopic Analysis ◽  
Shape Coexistence ◽  
Coordinate Method ◽  
Self Consistent ◽  
Collective Coordinate ◽  
Collective Hamiltonian

We develop a method of determining microscopically the collective potential and inertial masses in the five-dimensional quadrupole collective Hamiltonian on the basis of the adiabatic self-consistent collective coordinate method. We apply this method to shape coexistence/mixing phenomena in low-lying states of the proton-rich Kr isotopes.

scholarly journals IMPURITY EFFECT OF Λ HYPERON ON SHAPE-COEXISTENCE NUCLEUS 44S IN THE ENERGY FUNCTIONAL BASED COLLECTIVE HAMILTONIAN

2012 ◽  
Vol 21 (05) ◽  
pp. 1250024 ◽  
Author(s):  
H. MEI ◽  
Z. P. LI ◽  
J. M. YAO ◽  
K. HAGINO
Keyword(s):  
Density Functional ◽  
Nucleon Nucleon ◽  
Energy Functional ◽  
Impurity Effect ◽  
Shape Coexistence ◽  
Collective Variables ◽  
Energy Density Functional ◽  
Broken Symmetries ◽  
Collective Hamiltonian ◽  
Reduction Effect

The nonrelativistic Skyrme energy density functional (EDF) based collective Hamiltonian, that takes into account dynamical correlations related to the restoration of broken symmetries and fluctuations of quadrupole collective variables, is applied to quantitatively study the impurity effect of Λ hyperon on the collectivity of 44 S . Several Skyrme forces for both the nucleon–nucleon (NN) and Λ-nucleon (ΛN) interactions are used. The influence of pairing strengths on the polarization effect of Λ hyperon is also examined. It is found that although these Skyrme forces with different pairing strengths give somewhat different low-lying spectra for 44 S , all of them give similar and generally small size of Λ reduction effect (within 5%) on the collective properties.

Collective path and inertial mass of large-amplitude collective dynamics: Application to shape coexistence

2009 ◽  
Author(s):  
Nobuo Hinohara ◽  
Takashi Nakatsukasa ◽  
Masayuki Matsuo ◽  
Kenichi Matsuyanagi ◽  
Audrey Chatillon ◽  
...  
Keyword(s):  
Large Amplitude ◽  
Inertial Mass ◽  
Shape Coexistence ◽  
Collective Dynamics
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