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相关论文: Ferro-deformation and shape coexistence over the n…

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Background: Various motivations for exploration of superheavy region revolve around the question on whether 126 is a spherical proton magic number, as is the case for neutrons. In exploring this region, identification of nuclei with…

核理论 · 物理学 2025-06-04 W. Asous , Mastura Syamimi Abdullah , Meng-Hock Koh , Kok-Siong Khoo

Within the framework of Lanzhou quantum molecular dynamics transport model, the correlation of initial deformation and isospin diffusion is systematically investigated in collisions of $^{238}$U + $^{238}$U. The impacts of the collision…

核理论 · 物理学 2025-06-24 Yuan-Qing Guo , Ya-Peng Zhang , Zhao-Qing Feng

Nuclear alpha-clustering has been the subject of intense study since the advent of heavy-ion accelerators. Looking back for more than 40 years we are able today to see the connection between quasimolecular resonances in heavy-ion collisions…

核理论 · 物理学 2009-11-10 C. Beck

We have made a detailed study of the ground-state properties of nuclei in the light mass region with atomic numbers Z=10-22 in the framework of the relativistic mean-field (RMF) theory. The nonlinear $\sigma\omega$ model with scalar…

核理论 · 物理学 2009-10-30 G. A. Lalazissis , A. R. Farhan , M. M. Sharma

Flow fluctuations in ultra-relativistic heavy-ion collision can be probed by studying the momentum dependent correlations or the factorization-breaking coefficients between flow harmonics in separate kinematic bins (transverse momentum or…

核理论 · 物理学 2023-06-06 Rupam Samanta , Piotr Bozek

Experimental data on $^{96}$Zr indicate coexisting spherical and deformed structures with small mixing amplitudes. We investigate the properties of the low-lying collective states of $^{96}$Zr based on the collective quadrupole Bohr…

核理论 · 物理学 2019-03-27 D. A. Sazonov , E. A. Kolganova , T. M. Shneidman , R. V. Jolos , N. Pietralla , W. Witt

Nuclear deformation effects are theoretically investigated in terms of deformation corrections of the electronic binding and transition energies, $g$ factor, and hyperfine splitting constant. By solving the Dirac equation twice, with the…

原子物理 · 物理学 2023-09-15 Zewen Sun , Igor A. Valuev , Natalia S. Oreshkina

Shapes and high-spin properties of nuclei from the neutron-rich (N>56) zirconium region are calculated using the Nilsson-Strutinsky method with the cranked Woods-Saxon average potential and monopole pairing residual interaction. The shape…

核理论 · 物理学 2009-10-30 J. Skalski , S. Mizutori , W. Nazarewicz

The dynamic coupling effects on fusion cross sections for reactions $^{32}$S + $^{94,96}$Zr and $^{40}$Ca + $^{94,96}$Zr are studied with the universal fusion function formalism and an empirical coupled channel (ECC) model. An examination…

核理论 · 物理学 2016-03-11 Bing Wang , Wei-Juan Zhao , En-Guang Zhao , Shan-Gui Zhou

Any experimental evidence of nucleons paired in spin-triplet states will confirm the existence of an exotic phase of nuclear matter. This type of nuclear superfluidity has been hypothesized in heavy nuclei, where the antagonizing spin-orbit…

核理论 · 物理学 2025-01-31 G. Palkanoglou , M. Stuck , A. Gezerlis

We discuss the effect of pairing on two-neutron space correlations in deformed nuclei. The spatial correlations are described by the pairing tensor in coordinate space calculated in the HFB approach. The calculations are done using the D1S…

核理论 · 物理学 2014-11-20 N. Pillet , N. Sandulescu , P. Schuck , J. -F. Berger

The low energy excited $0_{2,3}^+$ states in $^{96}$Sr are amongst the most prominent examples of shape coexistence across the nuclear landscape. In this work, the neutron $[2s_{1/2}]^2$ content of the $0_{1,2,3}^+$ states in $^{96}$Sr was…

We study the shape coexistence of differently deformed states within $^{28}$Si using shell-model and beyond-mean-field techniques. Experimentally, $^{28}$Si exhibits shape coexistence between an oblate ground state and an excited prolate…

核理论 · 物理学 2025-07-30 D. Frycz , J. Menéndez , A. Rios , A. M. Romero

The deformation energy of the even-even nuclei of the Cerium isotopic chain is investigated by means of the Macroscopic-Microscopic method with a semi-classical shell correction. We consider axially symmetric shapes. Binding energy and two…

核理论 · 物理学 2015-06-04 B. Mohammed-Azizi , A. Helmaoui , D. E. Medjadi

Superdeformed states in light $N=Z$ nuclei are studied by means of the self-consistent cranking calculation (i.e., the P + QQ model based on the cranked Hartree-Fock-Bogoliubov method). Analyses are given for two typical cases of…

核理论 · 物理学 2008-11-26 Makito Oi

The analysis of shape transitions in Nd isotopes, based on the framework of relativistic energy density functionals and restricted to axially symmetric shapes in Ref. \cite{PRL99}, is extended to the region $Z = 60$, 62, 64 with $N \approx…

核理论 · 物理学 2009-12-31 Z. P. Li , T. Niksic , D. Vretenar , J. Meng , G. A. Lalazissis , P. Ring

Up to now, all charge radius measurements of the proton and deuteron assumed uniform spheroidal charge distribution. We investigate the nuclear deformation effects on these charge radius measurements by assuming a uniform prolate charge…

高能物理 - 唯象学 · 物理学 2019-11-05 Yonghui Lin , Bingsong Zou

In an old paper [ 1] B.H. Flowers discussed calculations for odd A nuclei in the g9/2 shell. He finds when he varies the parameters of a certain interaction that the lowest energy state is always a seniority v=1 state with angular momentum…

核理论 · 物理学 2022-10-05 Larry Zamick

Deformation, a key concept in our understanding of heavy nuclei, is based on a mean-field description that breaks the rotational invariance of the nuclear many-body Hamiltonian. We present a method to analyze nuclear deformations at finite…

核理论 · 物理学 2015-01-07 Y. Alhassid , C. N. Gilbreth , G. F. Bertsch

The nuclear shape correction to the g factor of a bound electron in 1S-state is calculated for a number of nuclei in the range of charge numbers from Z=6 up to Z=92. The leading relativistic deformation correction has been derived…

原子物理 · 物理学 2015-05-30 J. Zatorski , N. S. Oreshkina , C. H. Keitel , Z. Harman