Investigation of shape coexistence in 118-128Te isotopes

Abstract

In this paper, we have considered the interplay between phase transitions and configuration mixing of intruder excitations in the 118-128Te isotopes. A transitional interacting boson model Hamiltonian in both IBM-1 and IBM-2 versions which are based on affine Lie Algebra are employed to describe the evolution from spherical to deformed gamma unstable shapes along the chain of Te isotopes. The excitation energies, B(E0) and B(E2) transition rates are rather well reproduced in comparison with experimental counterparts when the weight of SO(6) limit is increased in Hamiltonian. Also our results show obvious relations between the configuration mixing ratio and quadrupole, hexadecapole and hexacontatetrapole deformation values in this isotopic chain.

30 pages, 5 figures, 12 TABLES. arXiv admin note: substantial text overlap with arXiv:1507.08035 by other authors

References in corpus (3)

• On the origin of the anomalous behaviour of 2+ excitation energies in the neutron-rich Cd isotopes
• Description of Even-Even Xe isotopes in the transitional region of IBM
• Configuration mixing effects in neutron-rich carbon isotopes

Cited by in corpus (6)

• Shape coexistence in even-even nuclei: A theoretical overview
• Energy spectra and quadrupole transition probabilities of 124-130Ba
• Coulomb excitation of ${}^{124}$Te: Emerging collectivity and persisting seniority structure in the $6_1^{+}$ level
• Emerging nuclear collectivity in ${}^{124-130}$Te
• Description of the critical point symmetry in 124Te by IBM-2
• Study of shape coexistence in the 180-190Hg isotopes by SO(6) representation of eigenstates