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相关论文: Backbending Effect in Deformed e-e Nuclei

200 篇论文

We study the properties of the spin dependent one body density in momentum space for odd--A polarized deformed nuclei within the mean field approximation. We derive analytic expressions connecting intrinsic and laboratory momentum…

核理论 · 物理学 2015-06-26 J. A. Caballero , E. Garrido , E. Moya de Guerra , P. Sarriguren , J. M. Udias

The anomalous low-energy $E2$-related behavior of a triaxially-deformed nucleus bas been identified and analyzed based on the SU(3) algebraic theory within the framework of the interacting boson model. The results show striking features…

核理论 · 物理学 2025-08-01 Yu Zhang , Ying-Wen He , D. Karlsson , Chong Qi , Feng Pan , J. P. Draayer

We present a review of the pseudo-SU(3) shell model and its application to heavy deformed nuclei. The model have been applied to describe the low energy spectra, B(E2) and B(M1) values. A systematic study of each part of the interaction…

核理论 · 物理学 2015-06-12 Gabriela Popa , Ana Georgieva

From Bohr-Mottelson model, a three parametric simple expression for the ground state rotational band of deformed even-even nuclei is deduced by incorporating the variable moment of inertia and the softness parameter. Our obtained results…

The three moments of inertia associated with the wobbling mode built on the superdeformed states in 163Lu are investigated by means of the cranked shell model plus random phase approximation to the configuration with an aligned…

核理论 · 物理学 2009-11-07 Masayuki Matsuzaki , Yoshifumi R. Shimizu , Kenichi Matsuyanagi

The high-order deformation effects in even-even $^{246,248}$No are investigated by means of pairing self-consistent Woods-Saxon-Strutinsky calculations using the potential-energy-surface (PES) approach in an extended deformation space…

核理论 · 物理学 2025-04-22 Jin-Liang Guo , Hua-Lei Wang , Kui Xiao , Zhen-Zhen Zhang , Min-Liang Liu

A thermodynamically consistent model for soft deformable viscoelastic magnets is formulated in actual space (Eulerian) coordinates. The possibility of a ferro-paramagnetic-type (or ferri-antiferromagnetic) transition exploiting Landau phase…

偏微分方程分析 · 数学 2023-02-07 Tomáš Roubíček

We propose a novel formulation of the Interacting Boson Model (IBM) for rotational nuclei with axially-symmetric strong deformation. The intrinsic structure represented by the potential energy surface (PES) of a given multi-nucleon system…

核理论 · 物理学 2011-07-19 Kosuke Nomura , Takaharu Otsuka , Noritaka Shimizu , Lu Guo

When the scattering length is proportional to the distance from the center of the system, two particles are shown to be trapped about the center. Furthermore, their spectrum exhibits discrete scale invariance, whose scale factor is…

量子气体 · 物理学 2015-03-20 Yusuke Nishida , Dean Lee

The neutrino oscillations in the field of a rotating deformed mass is investigated. The phase shift is evaluated in the case of weak field limit, slow rotation and small deformation. To this aim the Hartle-Thorne metric is used, which is an…

广义相对论与量子宇宙学 · 物理学 2015-06-04 Andrea Geralico , Orlando Luongo

We review recent theoretical and experimental advances toward understanding the effects of nuclear spins in confined nanostructures. These systems, which include quantum dots, defect centers, and molecular magnets, are particularly…

介观与纳米尺度物理 · 物理学 2009-09-15 W. A. Coish , J. Baugh

We study weakly-bound deformed nuclei based on the coordinate-space Skyrme Hartree-Fock-Bogoliubov approach, in which a large box is employed for treating the continuum and surface diffuseness. Approaching the limit of core-halo deformation…

核理论 · 物理学 2015-06-12 J. C. Pei , Y. N. Zhang , F. R. Xu

The three moments of inertia associated with the wobbling mode built on the triaxial superdeformed states in Lu--Hf region are investigated by means of the cranked shell model plus random-phase approximation to the configurations with…

核理论 · 物理学 2009-11-07 Masayuki Matsuzaki , Yoshifumi R. Shimizu , Kenichi Matsuyanagi

The deep inelastic scattering of leptons off nuclei is considered within the the Bethe-Salpeter formalism. It is shown that nuclear short-range structure can be expressed in terms of the nucleon structure functions and four-dimensional…

核理论 · 物理学 2007-05-23 Alexander Molochkov

The effective field theory for collective rotations of triaxially deformed nuclei is generalized to odd-mass nuclei by including the angular momentum of the valence nucleon as an additional degree of freedom. The Hamiltonian is constructed…

核理论 · 物理学 2020-03-18 Q. B. Chen , N. Kaiser , Ulf-G. Meißner , J. Meng

The nuclear magnetic moment is an important physical observable and serves as a useful tool for the stringent test of nuclear models. For the past decades, the covariant density functional theory and its extension have been proved to be…

核理论 · 物理学 2018-08-31 Jian Li , J. Meng

A collective vector-boson model with broken SU(3) symmetry is applied to several deformed even-even nuclei. The model description of ground and $\gamma$ bands together with the corresponding B(E2) transition probabilities is investigated…

核理论 · 物理学 2009-09-25 N. Minkov , S. Drenska , P. Raychev , R. Roussev , Dennis Bonatsos

We demonstrate that hot superheavy nuclei do not retain spherical shapes, as traditionally assumed, but instead equilibrate in deformed, often oblate or triaxial, configurations at finite excitation energy. This behavior arises from a…

We have investigated the effects of the neutron-proton interaction in several doubly odd deformed nuclei within the framework of the particle-rotor model. In this paper, we show some selected results of our study which evidence the…

核理论 · 物理学 2007-05-23 N. Itaco , A. Covello , A. Gargano

A double-folding method is used to calculate the nuclear and Coulomb interaction between two deformed nuclei with arbitrary orientations. A simplified Skryme-type interaction is adopted. The contributions of nuclear interaction and Coulomb…

核理论 · 物理学 2009-11-11 Qingfeng Li , Wei Zuo , Wenfei Li , Nan Wang , Enguang Zhao , Junqing Li , W. Scheid