Fingerprints of the triaxial deformation from energies and B(E2) transition probabilities of $$\gamma $$-bands in transitional and deformed nuclei

Rouoof, S. P.; Nazir, Nazira; Jehangir, S.; Bhat, G. H.; Sheikh, J. A.; Rather, N.; Frauendorf, S.

doi:10.1140/epja/s10050-024-01257-y

Cited by 3 publications

(2 citation statements)

References 93 publications

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“…In the traditional understanding, 154 Sm and 166 Er are typical nuclei with a prolate shape with vibrational excitations for the rotational spectra exists. However, recently, some nuclear structure models have been used to investigate the nature of 166 Er [65,67,68]. The studies found that the ground state of this largely-deformed nuc-γ ≈ 9 • leus has triaxial deformation with .…”

Section: β/γmentioning

confidence: 99%

“…A new study showed that 196 Pt may be related with the SU(3) irrep (4,4) [70]. From the perspective of Otsuka et al [65,67,69], this interaction may be also important for other nuclei, even the prolate nuclei 180 Hf. This shape phase transition requires further studies, and the SU3-IBM can also be used to study the triaxiality of these large deformation nuclei.…”

Section: β/γmentioning

confidence: 99%

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Emerging γ-soft-like spectrum in ¹⁹⁶Pt in the SU3-IBM (I)*

Wang 王,

He 何,

Zhou 周

et al. 2024

Chinese Phys. C

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Recently, it has been argued that a spherical-like spectrum emerges in the SU3-IBM,opening up new approaches to understand the γ-softness in realistic nuclei. In a previous paper,γ-softness with degeneracy of the ground and quasi-γ bands was observed. In this paper, anotherspecial point connected with the middle degenerate point is discussed, which is found to be relatedwith the properties of 196Pt. This emergent γ-softness has also been shown to be important forunderstanding the prolate-oblate asymmetric shape phase transition. The low-lying spectra, B(E2)values and quadrupole moments in 196Pt are discussed showing that the new model can accountfor several observed features. This is the first part of the discussions on the γ-soft-like spectrum of196Pt.

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Section: β/γmentioning

confidence: 99%

Section: β/γmentioning

confidence: 99%

Emerging γ-soft-like spectrum in ¹⁹⁶Pt in the SU3-IBM (I)*

Wang 王,

He 何,

Zhou 周

et al. 2024

Chinese Phys. C

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Origin of regularity in different nuclei from the viewpoint of the effective quadrupole deformation and triaxiality

Hosseinnezhad,

Sabri

2024

Phys. Scr.

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This paper presents a theoretical investigation of the possible relation between the regularity of nuclei and the quadrupole deformation of different levels (and also triaxiality). The present paper aims to uncover the underlying physical reasons for this regularity. To this aim, we calculated the effective quadrupole deformation of different levels using the interacting boson model. Also, different ratios between the quadrupole deformations of the energy levels in the ground, beta, and gamma bands are defined. The results for the energy levels confirm the correctness of labeling these states by the quantum numbers of U(5) and SU(3) dynamical symmetry limits (and also the extraction processes). Also, we observed a repetition pattern for these ratios for regular nuclei. Of course, the regularity and sameness of repetition patterns for the levels of the rotational bands are more than the levels of the ground band. For further study, we analyzed the effective quadrupole deformation values of different levels of regular nuclei using random matrix theory. The results show a strong statistical correlation for these quantities and confirm the observed repetition pattern. Also, the results of our studies showed that regular nuclei have triaxial properties.

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Mean-field-derived IBM-1 Hamiltonian with intrinsic triaxial deformation

Vasileiou,

Bonatsos,

Mertzimekis

2024

Phys. Rev. C

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Fingerprints of the triaxial deformation from energies and B(E2) transition probabilities of $$\gamma $$-bands in transitional and deformed nuclei

Cited by 3 publications

References 93 publications

Emerging γ-soft-like spectrum in ¹⁹⁶Pt in the SU3-IBM (I)*

Emerging γ-soft-like spectrum in ¹⁹⁶Pt in the SU3-IBM (I)*

Origin of regularity in different nuclei from the viewpoint of the effective quadrupole deformation and triaxiality

Mean-field-derived IBM-1 Hamiltonian with intrinsic triaxial deformation

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Fingerprints of the triaxial deformation from energies and B(E2) transition probabilities of $$\gamma $$-bands in transitional and deformed nuclei

Cited by 3 publications

References 93 publications

Emerging γ-soft-like spectrum in 196Pt in the SU3-IBM (I)*

Emerging γ-soft-like spectrum in 196Pt in the SU3-IBM (I)*

Origin of regularity in different nuclei from the viewpoint of the effective quadrupole deformation and triaxiality

Mean-field-derived IBM-1 Hamiltonian with intrinsic triaxial deformation

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Product

Resources

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Emerging γ-soft-like spectrum in ¹⁹⁶Pt in the SU3-IBM (I)*

Emerging γ-soft-like spectrum in ¹⁹⁶Pt in the SU3-IBM (I)*