scholarly journals Nuclear structure of 96,98Mo: Shape coexistence and mixed-symmetry states

2016 ◽  
Vol 947 ◽  
pp. 203-233 ◽  
Author(s):  
T. Thomas ◽  
V. Werner ◽  
J. Jolie ◽  
K. Nomura ◽  
T. Ahn ◽  
...  
Keyword(s):  
Nuclear Structure ◽  
Shape Coexistence ◽  
Mixed Symmetry ◽  
Mixed Symmetry States

Identification of mixed-symmetry states in odd- A 93Nb

2005 ◽  
Vol 25 (S1) ◽  
pp. 377-379 ◽  
Author(s):  
C. J. McKay ◽  
J. N. Orce ◽  
S. R. Lesher ◽  
D. Bandyopadhyay ◽  
M. T. McEllistrem ◽  
...  
Keyword(s):  
Mixed Symmetry ◽  
Mixed Symmetry States

scholarly journals Investigation of Mixed Symmetry States in 170-178Yb isotopes

2020 ◽  
Vol 1591 ◽  
pp. 012016
Author(s):  
Heiyam Najy Hady ◽  
Mohsin Kadhim Muttal
Keyword(s):  
Mixed Symmetry ◽  
Mixed Symmetry States

scholarly journals Mixed Symmetry States in 92Zr and 94Mo Nuclei

2021 ◽  
Vol 66 (12) ◽  
pp. 1013
Author(s):  
S.N. Abood ◽  
A.A. Al-Rawi ◽  
L.A. Najam ◽  
F.M. Al-Jomaily
Keyword(s):  
Experimental Data ◽  
Energy Spectra ◽  
Interacting Boson Model ◽  
Transition Rates ◽  
Collective Models ◽  
Electromagnetic Transition ◽  
Mixed Symmetry ◽  
Mixed Symmetry States ◽  
Boson Model ◽  
Phonon Model

Mixed-symmetry states of 92Zr and 94Mo isotopes are investigated with the use of the collective models, Interacting Boson Model-2 (IBM-2) and Quasiparticle Phonon Model (QPM). The energy spectra and electromagnetic transition rates for these isotopes are calculated. The results of IBM-2 and QPM are compared with available experimental data. We have obtained a satisfactory agreement, and IBM-2 gives a better description. In these isotopes, we observe a few states having a mixed symmetry such as 2+2, 2+3, 3+1, and 1+s. It is found that these isotopes have a vibrational shape corresponding to the U(5) symmetry.

scholarly journals The Prediction of the Electromagnetic Properties and the ?(E2/M1) of 110-116Cd-Isotopes in IBM Model

2011 ◽  
Vol 8 (3) ◽  
pp. 772-780
Author(s):  
Baghdad Science Journal
Keyword(s):  
Nuclear Structure ◽  
The State ◽  
Electromagnetic Properties ◽  
Interacting Boson Model ◽  
Mixing Ratios ◽  
Mixed Symmetry ◽  
Full Symmetry ◽  
Boson Model ◽  
Cd Isotopes ◽  
Spin Contribution

The Nuclear structure of 110-116Cd isotopes was studied theoretically in the framework of the interacting boson model of IBM-l and IBM-2. The properties of the lowest mixed symmetry states such as the 1+, 2+ and 3+ levels produced by the IBM-2 model in the vibrational-limit U(5) of Cd - isotopes are studied in details. This analysis shows that the character of mixed symmetry of 2+ is shared between and states in 110-114Cd – isotopes, the large shar goes to s, while in isotope, the state is declared as a mixed symmetry state without sharing. This identification is confirmed by the percentage of F-spin contribution. The electromagnetic properties of E2 and Ml operators were investigated and the results were analyzed. Various values of eB in the IBM-l and fixed e?= 0.104 eb and e?=0.093 e.b in the IBM-2 are used to generate the B(E2) and Q(2+). Fixed values of g? =0.31?N and g? =-0.31?N were adopted to generate the B(Ml) and ?(E2/ Ml) mixing ratios. The small values of ?(E2/Ml) which obtained for transition from MS- states to those of full symmetry support the conclusion that there may be a strong Ml transition between these states.

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.

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