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The binding energies of deformed even-even nuclei have been analysed within the framework of a recently proposed microscopic-macroscopic model. We have used the semiclassical Wigner - Kirkwood $\hbar$ expansion up to fourth - order, instead…

核理论 · 物理学 2015-06-05 A. Bhagwat , X. Viñas , M. Centelles , P. Schuck , R. Wyss

The potential-energy surfaces of an extended set of heavy and super-heavy even-even nuclei with $92 \le Z \le 126$ and isospins $40 \le N-Z \le 74$ are evaluated within the recently developed Fourier shape parametrization. Ground-state and…

核理论 · 物理学 2018-03-28 K. Pomorski , B. Nerlo-Pomorska , J. Bartel , C. Schmitt

We investigate the equation of state of asymmetric nuclear matter and its isospin dependence in various spin-isospin $ST$ channels within the framework of the Brueckner-Hartree-Fock approach extended to include a microscopic three-body…

核理论 · 物理学 2013-10-07 Wei Zuo , Shan-Gui Zhou , Jun-Qing Li , En-Guang Zhao , Werner Scheid

The microscopic center-of-mass (c.m.) correction energies for nuclei ranging from Oxygen to Calcium are systematically calculated by both spherical and axially deformed relativistic mean-field (RMF) models with the effective interaction…

核理论 · 物理学 2010-01-26 Zhao Peng-Wei , Sun Bao-Yuan , Meng Jie

Masses of superheavy (SH) nuclei with $Z=98-128$, including odd and odd-odd nuclei, are systematically calculated within the microscopic-macroscopic model based on the deformed Woods-Saxon potential. Ground states are found by minimizing…

核理论 · 物理学 2015-06-18 P. Jachimowicz , M. Kowal , J. Skalski

Systematic calculations of ground-state spin and parity of odd-mass nuclei have been performed within the Hartree--Fock--BCS (HFBCS) approach and the Finite-Range Droplet Model for nuclei for which experimental data are available. The…

核理论 · 物理学 2008-11-26 Ludovic Bonneau , Philippe Quentin , Peter Moller

We present microscopic calculations of light and medium mass nuclei and the equation of state of symmetric and asymmetric nuclear matter using different nucleon-nucleon forces, including a new Argonne version that has the same spin/isospin…

核理论 · 物理学 2015-01-07 S. Gandolfi , A. Lovato , J. Carlson , Kevin E. Schmidt

The relativistic mean field theory in combination with the analytic continuation in the coupling constant method is used to determine the energies and widths of single-particle resonant states in Sn isotopes. It is shown that there exists…

核理论 · 物理学 2009-11-11 Jian You Guo , Xiang Zheng Fang

The density dependence of the symmetry energy in the equation of state of isospin asymmetric nuclear matter is studied using the isoscaling of the fragment yields and the antisymmetrized molecular dynamic calculation. It is observed that…

核实验 · 物理学 2008-11-26 D. V. Shetty , S. J. Yennello , G. A. Souliotis

We analyse the contribution of isovector and isoscalar proton-neutron pairing to the binding energies of even-even nuclei with $N-Z=0,2,4$ and atomic mass $20 < A <100$. The binding energies are calculated in the mean-field approach by…

核理论 · 物理学 2022-04-06 D. Negrea , N. Sandulescu , D. Gambacurta

The isospin dependence of the spin-orbit potential is investigated for an effective Skyrme-like energy functional suitable for density dependent Hartree-Fock calculations. The magnitude of the isospin dependence is obtained from a fit to…

核理论 · 物理学 2016-09-08 M. M. Sharma , G. Lalazissis , J. König , P. Ring

Deformed and spherical even-even nuclei are studied using a finite range simple effective interaction within the Hartree-Fock-Bogoliubov mean field approach. Different parameter sets of the interaction, corresponding to different…

核理论 · 物理学 2017-04-13 B. Behera , X. Viñas , T. R. Routray , L. M. Robledo , M. Centelles , S. P. Pattnaik

Isoscalar and isovector particle densities are derived analytically by using the approximation of a sharp edged nucleus within the local energy density approach with the proton-neutron asymmetry and spin-orbit effects. Equations for the…

核理论 · 物理学 2009-05-29 A. G. Magner , A. I. Sanzhur , A. M. Gzhebinsky

The relation between energy and density (known as the nuclear equation of state) plays a major role in a variety of nuclear and astrophysical systems. Spin and isospin asymmetries can have a dramatic impact on the equation of state and…

核理论 · 物理学 2008-11-26 F. Sammarruca , P. G. Krastev

(Pseudo)spin symmetries play vital roles in nuclear physics and have been studied extensively in spherical nuclei. In this work, possible spin and pseudospin symmetries in deformed nuclei are examined by solving a coupled-channel Dirac…

核理论 · 物理学 2024-06-19 Ting-Ting Sun , Bing-Xin Li , Kun Liu

The isospin dependence of the spin-orbit potential is investigated for an effective Skyrme like energy-functional suitable for density-dependent Hartree-Fock calculations. The magnitude of the isospin dependence is obtained from a fit to…

核理论 · 物理学 2016-02-17 M. M. Sharma , G. A. Lalazissis , J. Koenig , P. Ring

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

Generalized symmetry energy coefficients of asymmetric nuclear matter are obtained as screening functions. The dependence of the isospin symmetry energy coefficient on the neutron proton (n-p) asymmetry may be determined unless by a…

核理论 · 物理学 2009-11-07 Fabio L. Braghin

Modeling deformation twin nucleation in magnesium has proven to be a challenging task. In particular, the absence of a heterogeneous twin nucleation model which provides accurate energetic descriptions for twin-related structures belies a…

材料科学 · 物理学 2025-10-14 Enver Kapan , Sertan Alkan , C. Can Aydıner , Jeremy K. Mason

Within the two-center shell model parameterization we have defined the optimal shape which fissioning nuclei attain just before the scission and calculated the total deformation energy (liquid drop part plus the shell correction) as…

核理论 · 物理学 2015-06-23 F. A. Ivanyuk , S. Chiba , Y. Aritomo
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