Strutinsky's shell-correction method in the extended Kohn-Sham scheme for the investigation of binding energies of atoms and cations in the ground state

2004 ◽  
Vol 99 (4) ◽  
pp. 265-276 ◽  
Author(s):  
Ya. I. Delchev ◽  
A. I. Kuleff ◽  
Tz. Mineva ◽  
F. Zahariev ◽  
J. Maruani
Keyword(s):  
Ground State ◽  
Correction Method ◽  
Binding Energies ◽  
Shell Correction

ROTATIONAL STATES IN HEAVIEST ISOTOPES

2011 ◽  
Vol 20 (02) ◽  
pp. 539-545 ◽  
Author(s):  
B. NERLO-POMORSKA ◽  
K. POMORSKI ◽  
A. DOBROWOLSKI
Keyword(s):  
Experimental Data ◽  
Single Particle ◽  
Ground State ◽  
Correction Method ◽  
Shell Correction ◽  
Moments Of Inertia ◽  
Rotational States ◽  
Particle Potential ◽  
Single Particle Potential

Masses and rotational energies of even-even Fm - Hs isotopes are obtained using the Yukawa-folded single-particle potential and the Lublin Strasbourg Drop . The Strutinsky shell-correction method and the BCS approximation were used to evaluate the shell and pairing corrections. The paring force strength is adjusted to the experimental rotational states of the considered nuclei. The ground-state masses and the lowest rotational states obtained by using the cranking moments of inertia at the equilibrium deformations agree well with the experimental data.

The binding energies of atomic nuclei III. Nuclear forces and the ground state of oxygen 16

1959 ◽  
Vol 253 (1273) ◽  
pp. 186-198 ◽  
Keyword(s):  
Binding Energy ◽  
Electron Scattering ◽  
Ground State ◽  
Binding Energies ◽  
Wave Functions ◽  
Unperturbed System ◽  
Core Radius ◽  
Nuclear Forces ◽  
Potential Core ◽  
Atomic Nuclei

The r. m. s. radius and the binding energy of oxygen 16 are calculated for several different internueleon potentials. These potentials all fit the low-energy data for two nucleons, they have hard cores of differing radii, and they include the Gammel-Thaler potential (core radius 0·4 fermi). The calculated r. m. s. radii range from 1·5 f for a potential with core radius 0·2 f to 2·0 f for a core radius 0·6 f. The value obtained from electron scattering experiments is 2·65 f. The calculated binding energies range from 256 MeV for a core radius 0·2 f to 118 MeV for core 0·5 f. The experimental value of binding energy is 127·3 MeV. The 25% discrepancy in the calculated r. m. s. radius may be due to the limitations of harmonic oscillator wave functions used in the unperturbed system.

MAGNETIC PROPERTIES OF SODIUM CLUSTERS

1996 ◽  
Vol 03 (01) ◽  
pp. 441-445 ◽  
Author(s):  
S. FRAUENDORF ◽  
V.V. PASHKEVICH ◽  
S.M. REIMANN
Keyword(s):  
Magnetic Properties ◽  
Correction Method ◽  
Shell Correction ◽  
Sodium Clusters

Axial and triaxial shapes of Na clusters are determined by means of the shell-correction method.1 The orbital paramagnetism and the diamagnetism of small Na clusters are calculated. Odd axial clusters may have substantial orbital paramagnetic moments, which are quenched for triaxial shapes. Even clusters show diamagnetism, which is maximal for spherical and attenuated for deformed shape.

scholarly journals TEMPERATURE DEPENDENCE OF THE NUCLEAR ENERGY IN RELATIVISTIC MEAN-FIELD THEORY

2005 ◽  
Vol 14 (03) ◽  
pp. 505-511 ◽  
Author(s):  
B. NERLO-POMORSKA ◽  
K. POMORSKI ◽  
J. SYKUT ◽  
J. BARTEL
Keyword(s):  
Single Particle ◽  
Level Density ◽  
Mean Field Theory ◽  
Mean Field ◽  
Correction Method ◽  
Shell Correction ◽  
Shell Effects ◽  
Relativistic Mean Field ◽  
Single Particle Level ◽  
Particle Level

Self-consistent relativistic mean-field (RMF) calculations with the NL3 parameter set were performed for 171 spherical even-even nuclei with 16≤A≤224 at temperatures in the range 0≤T≤4 MeV . For this sample of nuclei single-particle level densities are determined by analyzing the data obtained for various temperatures. A new shell-correction method is used to evaluate shell effects at all temperatures. The single-particle level density is expressed as function of mass number A and relative isospin I and compared with previous estimates.

TWO-OSCILLATOR BASIS EXPANSION FOR THE SOLUTION OF RELATIVISTIC MEAN FIELD EQUATIONS

2000 ◽  
Vol 09 (06) ◽  
pp. 507-520
Author(s):  
S. V. S. SASTRY ◽  
ARUN K. JAIN ◽  
Y. K. GAMBHIR
Keyword(s):  
Ground State ◽  
Mean Field ◽  
Surface Region ◽  
Binding Energies ◽  
Basis Functions ◽  
Field Equations ◽  
Basis Expansion ◽  
Relativistic Mean Field ◽  
Mean Field Equations ◽  
Spherical Nuclei

In the relativistic mean field (RMF) calculations usually the basis expansion method is employed. For this one uses single harmonic oscillator (HO) basis functions. A proper description of the ground state nuclear properties of spherical nuclei requires a large (around 20) number of major oscillator shells in the expansion. In halo nuclei where the nucleons have extended spatial distributions, the use of single HO basis for the expansion is inadequate for the correct description of the nuclear properties, especially that of the surface region. In order to rectify these inadequacies, in the present work an orthonormal basis composed of two HO basis functions having different sizes is proposed. It has been shown that for a typical case of (A=11) the ground state constructed using two-HO wave functions extends much beyond the second state or even third excited state of the single HO wave function. To demonstrate its usefulness explicit numerical RMF calculations have been carried out using this procedure for a set of representative spherical nuclei ranging from 16 O to 208 Pb . The binding energies, charge radii and density distributions have been correctly reproduced in the present scheme using a much smaller number of major shells (around 10) in the expansion.

The Spectroscopy of 198O11 and the 187N11 Ground State

1983 ◽  
Vol 36 (6) ◽  
pp. 825
Author(s):  
Raymond K Sheline
Keyword(s):  
Ground State ◽  
Sudden Change ◽  
Binding Energies ◽  
Ground State Spin ◽  
System A ◽  
State Spin

The spectroscopies of 190 and 21 Ne (both eleven-neutron systems) are compared. The 1-+ [211 iJ, t+ [220il and t- [lOttl bands are observed in both nuclei. On the basis of these similarities 190 is assumed to be a prolate rotor like 21 Ne. If then the recently studied IBN ground state is also considered to be a deformed system (a one-proton hole in the 190 nucleus), both the 1- ground state spin and the sudden change in the systematics of the two-neutron binding energies can be understood.

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