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Chinese Physics C 2022年第10期46卷 156-162页

作者：程俊皓张振吴喜军初鹏程李小华 School of Nuclear Science and Technology University of South ChinaHengyang 421001China Sino-French Institute of Nuclear Engineering and Technology Sun Yat-sen UniversityZhuhai 519082China School of Math and Physics University of South ChinaHengyang 421001China School of Science Qingdao Technological UniversityQingdao 266000China Cooperative Innovation Center for Nuclear Fuel Cycle Technology&Equipment University of South ChinaHengyang 421001China Key Laboratory of Low Dimensional Quantum Structures and Quantum Control Hunan Normal UniversityChangsha 410081China

In this study,we systematically investigate the proton radioactivity half-lives of 33 spherical nuclei based on the relationship between skyrme parameters and the macroscopic quantities of nuclear matter.Using the two-potential approach with the spherical skyrme-Hartree-Fock model,the correlation between proton radioactivity half-life and the macroscopic quantities is analyzed.Moreover,we obtain a new skyrme parameter set by fitting the two most weighted macroscopic quantities.Compared with the skyrme parameters MSLO and the theoretical model of proton radioactivity UDLP,the theoretical proton radioactivity half-life calculated using the new skyrme parameter set can better reproduce the experimental data.

关键词： proton radioactivity skyrme Hartree-Fock macroscopic quantities of nuclear matter

The Analytical Parametrization of Fusion Barrier by Using the skyrme Energy-Density Function Model

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Communications in Theoretical Physics 2015年第8期64卷 177-184页

作者： V.Zanganeh M.Mirzaei N.Wang Department of Physics Sciences Faculty Golestan University Department of Physics Guangxi Normal University

Using the skyrme energy density formalism, a pocket formula is introduced for barrier heights and positions of 95 fusion reactions(48≤ZPZT≤1520) with respect to the charge and mass numbers of the interacting nuclei. It is shown that the parameterized values of RBand VBare able to reproduce the corresponding experimental data with good accuracy. Moreover, the absolute errors of our formulas are less than those obtained using the analytical parametrization forms of the fusion barrier based on the proximity versions. The ability of the parameterized forms of the barrier heights and its positions to reproduce the experimental data of the fusion cross section have been analyzed using the Wong model.

关键词： fusion barrier skyrme force parameterization of fu

CHEMICAL POTENTIAL-DENSITY EQUATIONS OF STATE IN FINITE ASYMMETRIC NUCLEAR MATTER WITH skyrme INTERACTIONS

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Science China Mathematics 1992年第2期35卷 169-174页

作者：郑国桐苏汝铿 Department of Physics Hangzhou Teacher's College Hangzhou 3120012 PRC Department of Physics Fudan University Shanghai 200433 PRC

Using the method of finite temperature real time Green’s function, the equations of stateof the chemical potential-density for finite asymmetric nuclear matter are derived. The ef-fects of the Coulomb potential and the rearrangement potential on liquid-gas phase transitionin the nuclear matter with skyrme interactions are discussed.

关键词： nuclear matter skyrme potentials and equation of state.

Effects of mean-field and pairing correlations on the Bogoliubov quasiparticle resonance

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Science China(Physics,Mechanics & Astronomy) 2019年第11期62卷 93-101页

作者： XiaoYing Qu Ying Zhang School of Physics and Nuclear Energy Engineering Beihang UniversityBeijing 100191China School of Mechatronics Engineering Guizhou Minzu UniversityGuiyang 550025China Department of Physics School of ScienceTianjin UniversityTianjin 300072China

The quasiparticle resonances are investigated by examining three kinds of quasiparticle spectra, i.e., the density of quasiparticle states, the occupation number density, and the pair number density in the continuum skyrme Hartree-Fock-Bogoliubov theory with the Green’s function method. Taking the weakly bound nucleus 66Ca as an example, the quasiparticle resonant energies and widths extracted from these three kinds of quasiparticle spectra are compared. For the narrow resonances, the extracted resonant energy and the width are consistent with each other. However, it is difficult to use the density of quasiparticle states to identify the broad resonances due to the background of nonresonant continuum. By switching off the pairing potential and/or the Hartree-Fock(HF) potential respectively in the calculation of these quasiparticle spectra, the roles of HF mean-field and pairing correlations in the quasiparticle resonances are demonstrated clearly. It turns out that all the quasiparticle resonances corresponding to the deeply bound, weakly bound and positive-energy single-particle resonant states, are mainly contributed by the HF potential. The pairing potential helps to slightly increase the resonant energy and the width. However, the pairing potential is important to make the nucleons occupy the low-lying nonresonant continuum states near the threshold and take part in the pairing correlations here,especially for the partial waves with small angular momentum ?.

关键词： quasiparticle resonance mean-field pairing correlations skyrme Hartree-Fock-Bogoliubov theory Green’s function method

Effect of pairing correlation on low-lying quadrupole states in Sn isotopes

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Chinese Physics C 2021年第9期45卷 136-142页

作者：孙帅张时声张振华曹李刚 School of Mathematics and Physics North China Electric Power UniversityBeijing 102206China School of Physics Beihang UniversityBeijing 100191China Key Laboratory of Beam Technology of Ministry of Education College of Nuclear Science and TechnologyBeijing Normal UniversityBeijing 100875China Beijing Radiation Center Beijing 100875China

We examined the low-lying quadrupole states in Sn isotopes in the framework of fully self-consistent Hartree-Fock+BCS plus QRPA.We focus on the effect of the density-dependence of pairing interaction on the properties of the low-lying quadrupole state.The SLy5 skyrme interaction with surface,mixed,and volume pairings is employed in the calculations,respectively.We find that the excitation energies and the corresponding reduced electric transition probabilities of the first 2^(+) state are different,given by the three pairing interactions.The properties of the quasiparticle state,two-quasiparticle excitation energy,reduced transition amplitude,and transition densities in ^(112)Sn are analyzed in detail.Two different mechanisms,the static and dynamical effects,of the pairing correlation are also discussed.The results show that the surface,mixed,and volume pairings indeed affect the properties of the first 2^(+) state in the Sn isotopes.

关键词： density-dependence of pairing interaction low-lying quadrupole state skyrme energy density functional

Nonrelativistic mean-field description of the deformation of Λ hypernuclei

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Science China(Physics,Mechanics & Astronomy) 2009年第10期52卷 1548-1553页

作者： ZHOU XianRong CUI JiWei WEI Ning Department of Physics and Institute of Theoretical Physics and Astrophysics Xiamen UniversityXiamen 361005China

The deformations of light Λ hypernuclei are studied in an extended nonrelativistic deformed skyrme-Hartree-Fock approach with realistic modern nucleonic skyrme forces,pairing correlations,and a microscopical lambda-nucleon interaction derived from Brueckner-Hartree-Fock calculations.Compared to the large effect of an additional Λ particle on nuclear deformation in the light soft nuclei within relativistic mean field method,this effect is much smaller in the nonrelativistic mean-field approximation.

关键词： deformation hypernuclei deformed skyrme Hartree-Fock

Deformed-skyrme-Hartree-Fock Calculation on C Isotope

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Chinese Physics Letters 1998年第6期15卷 404-406页

作者：沈姚崧朱小峰任中洲 CCAST(World Laboratory) P.O.Box 8730Beijing 100080 Graduate School China Academy of Engineering PhysicsBeijing 100088 Institute of Applied Physics and Computational Mathematics Beijing 100088 China Institute of Atomic Energy Beijing 102413 Department of Physics Nanjing UniversityNanjing 210008

The ground state properties of deformed nuclei of C isotope are investigated by the skyrme-Hartree-Fock theory with new force parameters SKI4 of Reinhard and Flocard[Nucl.Phys.A 584(1995)467].Calculations show that the deformed-skyrme-Hartree-Fock theory with above force parameters provides a good description on the binding energy,the various radii and deformation parameters of C isotope.The figure of the evolution of deformation for whole C isotope chain is plotted.A detailed discussion on numerical results is provided in the paper.

关键词： Hartree deformed skyrme

Quark Spin Contents of Proton and Mass Difference Between Ξ and Δ

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Science China Mathematics 1994年第1期37卷 70-80页

作者：孙宗扬陈崑闫沐霖 Fundamental Physics Center University of Science and Technology of ChinaHefei 230026PRCFundamental Physics CenterUniversity of Science and Technology of ChinaHefei 230026PRCGuest professor in Institute of Theoretical PhysicsAcademia Sinica

Using the flavor-singlet axial current of 0(1) in the large Nc expansion and the skyrme model with BuBu term (6-derivative term),we calculate the quark spin contents of proton and various static observables of the baryons.It is found that the problem of the crossing between the mass spectra of the octet and decuplet in SU(3) can be solved naturally.The numerical results are compatible with experimental data.

关键词： QCD quark spin content skyrme model large Nc expansion

skyrme Hartree-Fock模型对中等质量超形变超核的研究（英文）

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原子核物理评论 2017年第1期34卷 92-97页

作者：周先荣 E.Hiyama H.Sagawa 华东师范大学物理系上海200241 日本理化学研究所仁科加速器科学中心日本会津大学数理中心

采用skyrme Hartree-Fock模型和微观的核子-超子相互作用对Ar同位素和^(40)Ca及相应超核的超形变态进行了研究,计算结果表明,基态的Λ超子分离能比激发态的大。这一结果与反对称化分子动力学模型的结果一致,而与相对论平均场的结果相反... 详细信息

采用skyrme Hartree-Fock模型和微观的核子-超子相互作用对Ar同位素和^(40)Ca及相应超核的超形变态进行了研究,计算结果表明,基态的Λ超子分离能比激发态的大。这一结果与反对称化分子动力学模型的结果一致,而与相对论平均场的结果相反。这区别主要来源于不同模型中不同的相互作用导致的核心核及相应超核密度分布的不同。

关键词： skyrme Hartree-Fock模型超形变超核

skyrme模型中的Goldberger-Treiman关系和核子的强作用半径

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Chinese Physics C 1988年第2期 269-272页

作者：李炳安中国科学院高能物理研究所中国科学技术大学基础物理中心

在这篇文章中证明,即使在m(?)0的情况下,在skyrme模型中仍可得到Goldberger-Treiman关系,核子的强作用半径被计算出来为0.8fm.

关键词： Goldberger-Treiman skyrme 核子重子