Journal ArticleDOI
Reinvestigation of the collective band structures in odd-odd 138Pm nucleus
Hong-Jie Li,Hong-Jie Li,Zhigang Xiao,S. J. Zhu,Chong Qi,E. Y. Yeoh,Z. Zhang,R. S. Wang,H. Yi,W. H. Yan,Q. Xu,X. G. Wu,C. Y. He,Y. Zheng,G. S. Li,C. B. Li,H. W. Li,J. J. Liu,S. P. Hu,J. L. Wang,S. H. Yao +20 more
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TLDR
In this paper, the high spin states in the odd-odd 138Pm nucleus have been reinvestigated via the 124Te(19F, 5n) reaction at the beam energy of 103 MeV.Abstract:
The high-spin states in the odd-odd 138Pm nucleus have been reinvestigated via the 124Te(19F, 5n) reaction at the beam energy of 103 MeV. Most of the known transitions and levels are confirmed. A number of bands are revised and one new band has been established. For the yrast πh
11/2⊗νh
11/2 band based on 8+ state, no evidence supporting the occurence of signature inversion is found. The experimental and theoretical B(M1)/B(E2) ratios have been calculated for band (2), which support the πg
7/2[413]5/2+ ⊗ νh
11/2[514]9/2− Nilsson configuration assignment. Four bands with ΔI = 2 transitions are tentatively assigned as doubly decoupled bands. The other three bands are proposed as oblate-triaxial bands. The possible configuration assignments for these bands are also discussed under the calculations of total Routhian surface and particle-rotor model.read more
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Nuclear Data Sheets for A=138
TL;DR: In this article, experimental nuclear structure data from various reactions and decays are compiled and evaluated for all known nuclides with mass number A=138 (Sn,Sb,Te,I,Xe,Cs,Ba,La,Ce,Pr,Nd,Pm,Sm,Eu,Gd,Tb).
Journal ArticleDOI
Candidate chiral doublet bands in Pm 138
Ke-Yan Ma,Jingcai Lu,Ze Zhang,J. Q. Liu,Dapeng Yang,Yang Liu,Xiaowei Xu,Xiaokun Li,Yunzuo Liu,Xiaoguang Wu,Yuanjie Zheng,Cong-Bo Li +11 more
TL;DR: In this article, a positive-parity side band with the same configuration as that of the yrast band was observed in the Pm reaction at a beam energy of 105 MeV.
Journal ArticleDOI
Nonadiabatic quasiparticle description of rotation-particle coupling in triaxial odd–odd nuclei
TL;DR: In this article, a nonadiabatic quasiparticle approach for the description of rotational states in triaxial deformed odd-odd nuclei is proposed, where the residual interaction between the valence proton and neutron is incorporated in two reliable ways, namely, the constant potential form and the zero-range interaction.
References
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ESCL8R and LEVIT8R: Software for interactive graphical analysis of HPGe coincidence data sets
TL;DR: In this article, a level scheme is proposed to calculate an expected spectrum for comparison with the observed spectrum, and a graphics-based editor is included to allow fast and easy modification of the proposed level scheme, and least-squares fits to the matrix or cube can be performed to extract optimum values for the energies and intensities of the level scheme transitions.
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Directional correlations of gamma radiations emitted from nuclear states oriented by nuclear reactions or cryogenic methods
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Structure of superdeformed bands in the A ≈ 150 mass region
TL;DR: The structure of superdeformed rotational bands recently discovered around 152 Dy is discussed within the deformed shell model based on an average Woods-Saxon potential with a monopole pairing force.
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Electromagnetic radiation of rotating nuclei
TL;DR: In this paper, an intrinsic representation of the radiative multipole operators is derived, which enables one to calculate directly electromagnetic transition amplitudes with cranking states, in this way both the orientation of the intrinsic system in space and the structure of the quasiparticles can be properly taken into account.
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Nuclear core-quasiparticle coupling
TL;DR: In this paper, the relationship between different core-particle coupling models based on the Bohr Hamiltonian is discussed, and in particular the γ-unstable and rigid 30° triaxial cores are compared quantitatively.