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相关论文: Charge radii and structural evolution in Sr, Zr, a…

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The analysis of self-consistency and proton-neutron interaction effects in the buildup of differential charge radii has been carried out in covariant density functional theoretical calculations without pairing interaction. Two…

核理论 · 物理学 2023-02-16 U. C. Perera , A. V. Afanasjev

The root-mean-square proton and neutron radii for $^{7,9-12,14}$\rm Be, $^{10-15,17}$\rm B, $^{12-19}$\rm C, $^{14,15,17-22}$\rm N, $^{16,18-24}$\rm O, and $^{18-21,23-26}$\rm F isotopes are deduced from a systematic analysis of…

核理论 · 物理学 2025-06-03 M. Imran , Z. Hasan , A. A. Usmani , Z. A. Khan

The evolution of the ground-state shape along the triaxial landscape of several isotopes of Yb, Hf, W, Os, and Pt is analyzed using the self-consistent Hartree-Fock-Bogoliubov approximation. Two well reputed interactions (Gogny D1S and…

核理论 · 物理学 2009-10-02 L M Robledo , R Rodriguez-Guzman , P Sarriguren

The shapes of neutron-rich exotic Ni isotopes are studied. Large-scale shell model calculations are performed by advanced Monte Carlo Shell Model (MCSM) for the $pf$-$g_{9/2}$-$d_{5/2}$ model space. Experimental energy levels are reproduced…

核理论 · 物理学 2015-06-17 Y. Tsunoda , T. Otsuka , N. Shimizu , M. Honma , Y. Utsuno

Sr isotopes are located in the mass region $A\approx 100$, where a very quick onset of nuclear deformation exists, being other notable examples of this area Yb, Zr, and Nb nuclei. The presence of the proton subshell closure $Z=40$ allows…

核理论 · 物理学 2022-04-13 Esperanza Maya-Barbecho , José Enrique García-Ramos

Charge radii measured with high accuracy provide a stringent benchmark for characterizing nuclear structure phenomena. In this work, the systematic evolution of charge radii for nuclei with $Z=19$-$29$ is investigated through relativistic…

核理论 · 物理学 2024-06-05 Rong An , Xiang Jiang , Na Tang , Li-Gang Cao , Feng-Shou Zhang

Total-Routhian-Surface calculations have been performed to investigate the shape evolutions of $A\sim80$ nuclei, $^{80-84}$Zr, $^{76-80}$Sr and $^{84,86}$Mo. Shape coexistences of spherical, prolate and oblate deformations have been found…

核理论 · 物理学 2015-06-18 S. J. Zheng , F. R. Xu , S. F. Shen , H. L. Liu , R. Wyss

A comprehensive study of various ground-state properties of neutron-rich and neutron-deficient Mg isotopes with $A$=20-36 is performed in the framework of the self-consistent deformed Skyrme-Hartree-Fock plus BCS method. The correlation…

核理论 · 物理学 2015-06-19 M. K. Gaidarov , P. Sarriguren , A. N. Antonov , E. Moya de Guerra

Very recently the atomic masses of neutron-rich Zr isotopes, from $^{96}$Zr to $^{104}$Zr, have been measured with high precision. Using a schematic Interacting Boson Model (IBM) Hamiltonian, the evolution from spherical to deformed shapes…

核理论 · 物理学 2009-11-10 J. E. Garcia-Ramos , K. Heyde , R. Fossion , V. Hellemans , S. De Baerdemacker

The rapid shape change in Zr isotopes near neutron number $N$=60 is identified to be caused by type II shell evolution associated with massive proton excitations to its $0g_{9/2}$ orbit, and is shown to be a quantum phase transition. Monte…

核理论 · 物理学 2016-10-26 Tomoaki Togashi , Yusuke Tsunoda , Takaharu Otsuka , Noritaka Shimizu

Beta-decay properties of neutron-rich Zr and Mo isotopes are investigated within a microscopic theoretical approach based on the proton-neutron quasiparticle random-phase approximation. The underlying mean field is described…

核理论 · 物理学 2014-03-19 P. Sarriguren , A. Algora , J. Pereira

We show that the charge radii of neighboring atomic nuclei, independent of atomic number and charge, follow remarkably very simple relations, despite the fact that atomic nuclei are complex finite many-body systems governed by the laws of…

核理论 · 物理学 2014-11-25 B. H. Sun , Y. Lu , J. P. Peng , C. Y. Liu , Y. M. Zhao

In the framework of the interacting boson model, relations are derived between nuclear charge radii, electric monopole transition rates, and summed magnetic dipole transition in even-even nuclei. The proposed correlations are tested in the…

核理论 · 物理学 2014-08-29 P. Van Isacker

The shape transitions and shape coexistence in the Ge and Se isotopes are studied within the interacting boson model (IBM) with the microscopic input from the self-consistent mean-field calculation based on the Gogny-D1M energy density…

核理论 · 物理学 2017-06-15 K. Nomura , R. Rodríguez-Guzmán , L. M. Robledo

The nuclear charge radius provides a fundamental probe of nuclear structure, yet experimental data remain rare in the actinide region. Using the deformed relativistic Hartree-Bogoliubov theory in continuum (DRHBc) with the PC-PK1…

核理论 · 物理学 2026-03-10 Ting-Ting Sun , Qi Zhang , Peng Wang , Zi-Dan Huang , Shuang-Quan Zhang

The shell structure of even-even isotopes in Si, S, Ar and Ca has been analysed. The theoretical calculations of shell closure parameter $D_{n} (N)$ and the differential variation of the two-neutron separation energy $dS_{2n} (Z, N )$ are…

The evolution of the total energy surface and the nuclear shape in the isotopic chain $^{172-194}$Pt are studied in the framework of the interacting boson model, including configuration mixing. The results are compared with a…

核理论 · 物理学 2015-06-18 J. E. Garcia-Ramos , K. Heyde , L. M. Robledo , R. Rodriguez-Guzman

The current investigation aims to study the ground-state properties of one of the most interesting isotopic chains in the periodic table, 94-168Sn, from the proton drip line to the neutron drip line by using the covariant density functional…

核理论 · 物理学 2019-04-24 Younes El Bassem , Mostafa Oulne

The structure of even-even neutron-rich Ru, Mo, Zr and Sr nuclei in the $A\approx 100$ mass region is studied within the interacting boson model (IBM) with microscopic input from the self-consistent mean-field approximation based on the…

核理论 · 物理学 2016-10-21 K. Nomura , R. Rodríguez-Guzmán , L. M. Robledo

The mesoscopic nature of the atomic nucleus gives rise to a wide array of macroscopic and microscopic phenomena. The size of the nucleus is a window into this duality: while the charge radii globally scale as $A^{1/3}$, their evolution…