Understanding nuclear shape phase transitions within SD-pair shell model

2014 ◽  
Author(s):  
Lei Li ◽  
Yu Zhang ◽  
Xiaoqing Yuan ◽  
Jiangdan Li ◽  
Yanan Luo ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Shell Model ◽  
Nuclear Shape

NUCLEAR SHAPE PHASE TRANSITIONS AT THE NUCLEON LEVEL WITHIN SD-PAIR SHELL MODEL

2016 ◽  
Author(s):  
Lei Li ◽  
Yanan Luo ◽  
Yu Zhang ◽  
Feng Pan ◽  
Jerry P. Draayer
Keyword(s):  
Phase Transitions ◽  
Shell Model ◽  
Nuclear Shape

scholarly journals Nuclear shell model and phase transitions

2017 ◽  
Author(s):  
Sofia Karampagia ◽  
Vladimir Zelevinsky
Keyword(s):  
Phase Transitions ◽  
Shell Model ◽  
Nuclear Shell Model ◽  
Nuclear Shell

Th and U fission barriers within the Woods-Saxon two center shell model

Open Physics ◽  
2011 ◽  
Vol 9 (1) ◽  
Author(s):  
Mihail Mirea ◽  
Laurent Tassan-Got
Keyword(s):  
Experimental Data ◽  
Shell Model ◽  
Configuration Space ◽  
Single Particle ◽  
Degrees Of Freedom ◽  
Nuclear Shape ◽  
Microscopic Method ◽  
Minimal Action ◽  
Fission Barriers ◽  
Theoretical Results

AbstractFission barriers of actinides are calculated in the framework of the macroscopic-microscopic method. The single particle energies are obtained within a new version of the Woods-Saxon two-center shell model. A nuclear shape parametrization characterized by five degrees of freedom is used. The barriers are calculated along the minimal action trajectory in the configuration space and the inertia is evaluated within the cranking formalism. The reliability of the model is tested by comparing the theoretical results with values deduced from experimental data.

Nuclear Shape Phase Transitions Using IBM Applied to Erbium and Ruthenium Nuclei

2021 ◽  
Vol 18 (5) ◽  
pp. 527-539
Author(s):  
M. Ramadan ◽  
A. M. Khalaf ◽  
M. Kotb ◽  
M. D. Okasha
Keyword(s):  
Phase Transitions ◽  
Nuclear Shape

scholarly journals Phases and phase transitions in the algebraic microscopic shell model

2016 ◽  
Vol 107 ◽  
pp. 03010
Author(s):  
A. I. Georgieva ◽  
K. P. Drumev
Keyword(s):  
Phase Transitions ◽  
Shell Model

scholarly journals Nuclear Shell Model And Quantum Phase Transitions

2019 ◽  
Vol 26 ◽  
pp. 88
Author(s):  
S. Karampagia ◽  
V. Zelevinsky
Keyword(s):  
Phase Transition ◽  
Phase Transitions ◽  
Shell Model ◽  
Quantum Phase Transitions ◽  
Mean Field ◽  
Nuclear Shell Model ◽  
Matrix Elements ◽  
Model Hamiltonian ◽  
Orbital Space ◽  
Nuclear Shell

The usual nuclear shell model defines nuclear properties through an effective mean-field plus a two-body interaction Hamiltonian in a finite orbital space. In this study we try to understand the correlation between the various parts of the shell model Hamiltonian and the nuclear observables and collectivity in nuclei. By varying specific groups of matrix elements we find signs of a phase transition in nuclei between a non-collective and a collective phase. In all cases studied the collective phase is attained when the single-particle transfer matrix elements are dominant in the shell model Hamiltonian, giving collective characteristics to nuclei.

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