Microscopic analysis of prolate-oblate shape phase transition and shape coexistence in the Er-Pt region

2021 ◽  
Vol 103 (5) ◽  
Author(s):  
X. Q. Yang ◽  
L. J. Wang ◽  
J. Xiang ◽  
X. Y. Wu ◽  
Z. P. Li
Keyword(s):  
Phase Transition ◽  
Microscopic Analysis ◽  
Shape Coexistence ◽  
Oblate Shape ◽  
Shape Phase Transition

scholarly journals Microscopic Analysis of Shape Coexistence/Mixing and Shape Phase Transition in Neutron-Rich Nuclei around $^{32}$Mg

2012 ◽  
Vol 196 ◽  
pp. 328-333
Author(s):  
Nobuo Hinohara ◽  
Koichi Sato ◽  
Kenichi Yoshida ◽  
Takashi Nakatsukasa ◽  
Masayuki Matsuo ◽  
...  
Keyword(s):  
Phase Transition ◽  
Microscopic Analysis ◽  
Shape Coexistence ◽  
Shape Phase Transition

scholarly journals Nuclear shapes: Quest for triaxiality in 86Ge and the shape of 98Zr

2018 ◽  
Vol 178 ◽  
pp. 02013 ◽  
Author(s):  
V. Werner ◽  
M. Lettmann ◽  
C. Lizarazo ◽  
W. Witt ◽  
D. Cline ◽  
...  
Keyword(s):  
Phase Transition ◽  
Nuclear Structure ◽  
Shape Coexistence ◽  
Shell Closure ◽  
Structural Effects ◽  
Triaxial Deformation ◽  
Rich Variety ◽  
Shell Closures ◽  
Shape Phase Transition ◽  
Neutron Shell Closure

The region of neutron-rich nuclei above the N = 50 magic neutron shell closure encompasses a rich variety of nuclear structure, especially shapeevolutionary phenomena. This can be attributed to the complexity of sub-shell closures, their appearance and disappearance in the region, such as the N = 56 sub shell or Z = 40 for protons. Structural effects reach from a shape phase transition in the Zr isotopes, over shape coexistence between spherical, prolate, and oblate shapes, to possibly rigid triaxial deformation. Recent experiments in this region and their main physics viewpoints are summarized.

scholarly journals Shape phase transition and shape coexistence in the Bose-Fermi system

2018 ◽  
Vol 178 ◽  
pp. 05004 ◽  
Author(s):  
Yu Zhang ◽  
Wenting Dong ◽  
He Jiang
Keyword(s):  
Phase Transition ◽  
Fermi System ◽  
Shape Coexistence ◽  
Classical Analysis ◽  
Fermion Model ◽  
Shape Phase Transition

A classical analysis of shape phase transition and shape coexistence in odd-even nuclei has been carried within the interacting boson-fermion model. The results indicate that shape coexistence can be taken as a signature of shape phase transition in odd-even nuclei.

scholarly journals Rotation-driven prolate-to-oblate shape phase transition in 190W: A projected shell model study

2008 ◽  
Vol 659 (1-2) ◽  
pp. 165-169 ◽  
Author(s):  
Yang Sun ◽  
Philip M. Walker ◽  
Fu-Rong Xu ◽  
Yu-Xin Liu
Keyword(s):  
Phase Transition ◽  
Shell Model ◽  
Projected Shell Model ◽  
Oblate Shape ◽  
Model Study ◽  
Shape Phase Transition

scholarly journals Z(5): Critical Point Symmetry for the Prolate to Oblate Nuclear Shape Phase Transition

2020 ◽  
Vol 13 ◽  
pp. 73
Author(s):  
Dennis Bonatsos ◽  
D. Lenis ◽  
D. Petrellis ◽  
P. A. Terziev
Keyword(s):  
Experimental Data ◽  
Phase Transition ◽  
Critical Point ◽  
Point Symmetry ◽  
Transition Rates ◽  
Oblate Shape ◽  
Scale Factors ◽  
Shape Phase Transition ◽  
Nuclear Shape Phase Transition ◽  
Good Agreement

A critical point symmetry for the prolate to oblate shape phase transition is intro­ duced, starting from the Bohr Hamiltonian and approximately separating variables for γ=30°. Parameter-free (up to overall scale factors) predictions for spectra and B(E2) transition rates are found to be in good agreement with experimental data for 194Pt, which is supposed to be located very close to the prolate to oblate critical point, as well as for its neighbours (192Pt, 196Pt).

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