Journal ArticleDOI
High-Spin Potential-Energy Surfaces
TLDR
In this paper, a systematic calculation of high-spin potential-energy surfaces in the -γ-plane has been performed within the cranked Nilsson-Strutinsky model, and results from 407 even-even nuclei ranging from 6634Se to 21884Po are available, each at about ten different spin values.Abstract:
A systematic calculation of high-spin potential-energy surfaces in the -γ-plane has been performed within the cranked Nilsson-Strutinsky model. In all, results from 407 even-even nuclei ranging from 6634Se to 21884Po are available, each at about ten different spin values. In the case of I > 0 the pairing interaction is neglected, while it is accounted for at spin zero. Approximately 4200 different potential-energy surfaces are presented in the compact form of micro-fiche films.read more
Citations
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Journal ArticleDOI
Rotational bands and particle-hole excitations at very high spin
TL;DR: In this paper, a method of calculating high-spin states of nuclei within the cranked Nilsson-Strutinsky framework is presented and discussed in some detail, such as shape coexistence, shape changes, band crossings and band terminations.
Journal ArticleDOI
Microscopic study of the high-spin behaviour in selected A ~= 80 nuclei
TL;DR: The collective and non-collective high-spin configurations in selected A ⋍ 80 nuclei are analyzed in detail using a shell-correction approach taking care of individual configurations and the pairing self-consistent cranking method with a non-axially deformed Woods-Saxon potential as discussed by the authors.
Journal ArticleDOI
Coexistence in even-mass nuclei
TL;DR: In this article, two main theoretical approaches for shape coexistence in doubly even nuclei are presented, the shell model and the deformed mean field approach, which is broadly defined so that it includes various truncation schemes, including generalized seniority and the interacting boson model.
Journal ArticleDOI
Self-consistent study of triaxial deformations: Application to the isotopes of Kr, Sr, Zr and Mo
TL;DR: In this article, the triaxial stability of the deformed ground states in the deformation regions N ≈ 38 and n ≈ 60 was investigated and the results were in good agreement with the observed trends.
Journal ArticleDOI
Nuclear Shapes and Shape Transitions
TL;DR: In this paper, the authors presented an overview of the results in the form of four colour contour diagrams vs proton number Z and neutron number N and showed the regions of magic and deformed nuclei.
References
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Journal ArticleDOI
On the nuclear structure and stability of heavy and superheavy elements
Sven Gösta Nilsson,Chin-Fu Tsang,Adam Sobiczewski,Zdzisław Szymański,S. Wycech,C Gustafson,Inger-Lena Lamm,Peter Möller,Björn Nilsson +8 more
TL;DR: In this article, a modified oscillator model is used to calculate the nuclear potential energy surfaces as a function of deformations. And the average behavior of the surface is normalized to that of a liquid drop through the employment of a generalized Strutinsky prescription, and a synthesis of the single-particle model and the liquid-drop model is obtained.
Journal ArticleDOI
Quasiparticle spectra near the yrast line
R. Bengtsson,S. Frauendorf +1 more
TL;DR: In this article, the yrast spectra of the nuclides 68 ≦ Z ≦ 70, 89 ≦ N ≦ 99 were analyzed in terms of quasiparticle configurations in a deformed field rotating with the frequency ω, and the excitation energy, e', in the rotating frame (Routhian) and the aligned angular momentum, i, relative to the ground state band as functions of ω were extracted from the experimental rotational bands which were classified with respect to their signature, α, and parity, π.
Journal ArticleDOI
Nuclear shell structure at very high angular momentum
G. Andersson,S E Larsson,G Leander,Peter Möller,Sven Gösta Nilsson,Ingemar Ragnarsson,Sven Åberg +6 more
TL;DR: In this article, a cranked modified-oscillator model was used to study the nuclear potential energy surface (based on a Strutinsky type of shell correction method) for very high angular momenta (30 ≦ I ≦ 100).
Journal ArticleDOI
Some Current Themes in Nuclear Research
Aage Bohr,B R Mottelson +1 more
TL;DR: In this paper, elementary modes of excitation with special emphasis on the isoscalar highfrequency quadrupole vibrations were discussed, and conditions for shell structure in both spherical and deformed potentials.
Journal ArticleDOI
Comparison of potential-energy surfaces and moments of inertia with experimental spectroscopic trends for non-spherical Z = 50–82 nuclei
TL;DR: In this paper, a broad discussion of the ground-state potential-energy surfaces of doubly even deformed and transitional nuclei with Z = 50−82 is presented, where the surfaces are calculated microscopically as functions of the quadrupole axial e and non-axial γ and the axial hexadecapole e4 deformations.