A5000946970- Nuclear physics research studies
- Astronomical and nuclear sciences
- Atomic and Molecular Physics
- Nuclear Physics and Applications
- Astro and Planetary Science
- High-pressure geophysics and materials
- Quantum Chromodynamics and Particle Interactions
- Advanced Chemical Physics Studies
- Superconductivity in MgB2 and Alloys
- Scientific Research and Discoveries
- Quantum chaos and dynamical systems
- Spacecraft and Cryogenic Technologies
- Superconducting Materials and Applications
- Pulsars and Gravitational Waves Research
- Gamma-ray bursts and supernovae
State Key Laboratory of Nuclear Physics and Technology
2020-2022
Henan University of Technology
2022
Peking University
2020-2022
Zhengzhou University
2014-2018
Static fission barriers for 95 even-even transuranium nuclei with charge number Z = 94–118 have been systematically investigated by means of pairing self-consistent Woods-Saxon-Strutinsky calculations using the potential energy surface approach in multidimensional (β2, γ, β4) deformation space. Taking heavier 252Cf nucleus (with available barrier from experiment) as an example, formation and influence macroscopic, shell correction energies on it are analyzed. The results present calculated...
The recently observed weakly bound $^{39}\mathrm{Na}$ provides a stringent theoretical constraint on the neutron drip line. We studied properties of drip-line nuclei around with Hartree-Fock-Bogoliubov method and various Skyrme interactions. adopted extended ${\mathrm{SkM}}_{\mathrm{ext}1}^{*}$ parametrization which can properly describe two-neutron separation energies oxygen fluorine isotopes deformations at center ``island inversion.'' Systematic calculations lines O, F, Ne, Na, Mg, Al...
Motivated by the newly observed $^{39}\mathrm{Na}$ in experiments, systematic calculations of global nuclear binding energies with seven Skyrme forces are performed. We demonstrate strong correlation between two-neutron separation and total number bound nuclei whole landscape. Furthermore, calculated masses, we perform astrophysical rapid neutron capture process ($r$-process) simulations using reaction code talys network skynet. $r$-process abundances from ejecta star mergers (NSM)...
The evolution of shape and rotational structure along the yrast line in even–even |$^{118-128}$|Ba isotopes has been systematically investigated by means pairing self-consistent Woods–Saxon–Strutinsky calculations using total Routhian surface approach (|$\beta_2, \gamma, \beta_4$|) deformation space. Based on curves at different frequencies, instability softness are evaluated and/or predicted detail, particularly |$\gamma$| direction. backbending or upbending behavior due to alignments...
High-spin yrast structures of even-even superheavy nuclei 254–258Rf are investigated by means total-Routhian-surface approach in three-dimensional (β2, γ, β4) space. The behavior the moments inertia 256Rf is well reproduced our calculations, which attributed to j15/2 neutron rotation-alignment. competition between rotationally aligned i13/2 proton and may occur a large extent 256Rf. predictions also made for its neighboring isotopes 254,258Rf, showing that alignment pair more favored than pair.
The triaxiality and Coriolis effects on the first fission barrier in even–even nuclei with |$A=256$| have been studied terms of approach multidimensional total Routhian surface calculations. present results are compared available data other theories, showing a good agreement. Based deformation energy or curves, barriers analyzed, focusing their shapes, heights, evolution rotation. It is found that, relative to effect ground-state minimum, saddle point, at least one, can be strongly affected...
The properties of γ instability in rapidly rotating even-even 132–138Nd isotopes have been investigated using the pairing-deformation self-consistent total-Routhian-surface calculations a deformation space (β2, γ, β4). It is found that 134–138Nd nuclei exhibit triaxiality both ground and excited states, even up to high-spin states. lightest isotope possesses well-deformed prolate shape without component. current numerical results are compared with previous available observables such as...
Total Routhian surface (TRS) calculations for even–even N = 76 isotones with 54 ≤ Z 68 have been performed in three-dimensional (β2, γ, β4) deformation space. Calculated results of the equilibrium deformations are presented and compared other theoretical predictions available experimental data. The behavior collective angular momentum shows neutron rotation-alignment is preferred lighter isotones, while heavier ones proton alignment favored. Moreover, multi-pair nucleon alignments their...
The first (namely, inner) fission barriers for even-A N = 152 nuclei have been studied systematically in the framework of macroscopic-microscopic model by means potential energy surface (PES) calculations three-dimensional () deformation space. Their collective properties, such as ground-state deformations, are compared with previous and available observations, showing a consistent trend. In addition, it has found that microscopic shell correction plays an important role on surviving these...
Background: The recent experimental discovery of drip-line nucleus 39Na has attracted great interest in theoretical studies exotic nuclear structures this mass region. Methods: We solve the Skyrme–Hartree–Fock–Bogoliubov (Skyrme-HFB) equation within deformed coordinate-spaces. present approach is suitable for descriptions weakly bound nuclei with continuum effects and halo structures. Results: systematical two-neutron separation energies are obtained SkMext1* UNEDF0ext1 forces Na Mg isotopes...
Abstract By using potential energy surface (PES) calculations in the three-dimensional space ( β 2 , γ 4 ) within framework of macroscopic-microscopic model, fission trajectory and barrier for Z = 118(Og), 119, 120 nuclei has been systematically investigated. The calculated PES includes macroscopic liquid-drop energy, microscopic shell correction pairing correction. Taking 294 Og 176 nucleus as an example, we discuss next closed after 82 N 126 with Woods–Saxon single-particle levels. Then,...
A unified description of finite nuclei and equation state neutron stars present a major challenge as well opportunities for understandings nuclear interactions.Inspired by the Lee-Huang-Yang formula hard-sphere gases, we developed effective interactions with an additional high-order density dependent term.The original Skyrme force SLy4 is widely used in studies but not satisfied global descriptions nuclei. The refitted SLy4${'}$ can improve slightly reduces radius star 1.4 solar mass.We...
基于（β2，γ，β4）形变空间下对-形变自洽的原子核能量面计算方法，系统研究分析了50 Nuclear shape and stiffness evolutions in even-even nuclei with 50 < Z 82 are systematically analyzed terms of the pairing-deformation self-consistent nuclear-energy-surface calculation (β2,γ,β4) deformation space. Calculated equilibrium deformations presented compared other theoretical predictions available experimental data. The parameters Cβ Cγ respectively related to quadrupole β2 γ determined from energy curves, which consistent observed...
在双核模型的理论框架下系统研究了超重元素Z = 116 ~121 的蒸发剩余截面，计算过程中核子扩散由主方程描述，同时考虑了全熔合与准裂变的竞争。计算基本再现了利用热熔合反应48Ca+245Cm，48Ca+249Cf 和48Ca+249Bk 产生116~118 号同位素的合成截面。同样，分别以249Bk，249Cf 和243Am 为靶，以48Ca，50Ti 和58Fe 为炮弹，计算了Z 119~ 121 号同位素的生成截面。结果表明，这些超重核的生成截面随着质子数的增大进一步变小。例如，利用58Fe+243Am 反应合成121 号同位素的最大蒸发剩余截面仅在fb 量级。基于对选择的几个反应系统的系统分析，发现双核系统在熔合蒸发过程中偶Z 奇N 和奇Z 偶N 复合核分别有强的3n 和4n 蒸发道。 The production cross sections of superheavy elements with Z 116~121 have been investigated systematically within the dinuclear system (DNS)...
A systematic investigation of collective properties in the nuclei an [Formula: see text]-decay chain from text]Po to text]Cn has been performed total-Routhian-surface calculations. The empirical indicator text]-factor, energy ratio text], and energies first excited state text] exhibit a hint about nuclear deformation or shape transition these nuclei. calculated results ground equilibrium deformations are compared with previous study available experimental data, showing general agreement. In...