Description of the critical point symmetry in 124Te by IBM-2

Based on the neutron and proton degrees of freedom, the low-lying energy levels, the \(E2\), \(M1\) and \(E0\) transition strengths of nucleus \(^{124}\)Te have been calculated by the neutron-proton interacting boson model. The calculated results are quite consistent with the experimental data. By c...

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Bibliographic Details
Published in:arXiv.org 2018-12
Main Authors: Zhang, Dali, Mu, Chengfu
Format: Article
Language:English
Subjects:
Critical point
Energy levels
Nuclei (nuclear physics)
Phase transitions
Rotation
Symmetry
Online Access:Get full text
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Summary:Based on the neutron and proton degrees of freedom, the low-lying energy levels, the \(E2\), \(M1\) and \(E0\) transition strengths of nucleus \(^{124}\)Te have been calculated by the neutron-proton interacting boson model. The calculated results are quite consistent with the experimental data. By comparing the key observables of states at the critical point of \(\textrm{U}_{\pi \nu}(5)\)--\(\textrm{O}_{\pi \nu}(6)\) transition with experimental data and calculated results, we show that the \(^{124}\)Te is a possible nucleus at the critical point of the second order phase transition from vibration to unstable rotation and such a critical point contains somewhat triaxial rotation. The 0\(^+_2\) state of \(^{124}\)Te can be interpreted as the lowest state of the first excited family of intrinsic levels in the critical point symmetry.
ISSN:2331-8422