Surface layer effect on nuclear deformation energy

2016 ◽  
Vol 25 (03) ◽  
pp. 1650016 ◽  
Author(s):  
V. M. Kolomietz ◽  
A. I. Sanzhur ◽  
B. V. Reznychenko
Keyword(s):  
Surface Layer ◽  
Liquid Drop ◽  
Deformation Energy ◽  
Energy Functional ◽  
Nuclear Deformation ◽  
Profile Function ◽  
Layer Effect ◽  
Surface Diffuseness ◽  
Direct Variational Method ◽  
Diffuseness Parameter

In this paper, we apply the direct variational method to derive the nuclear deformation energy. The extended Thomas–Fermi approximation (ETFA) for the energy functional with Skyrme forces is used. We study the influence of the finite surface layer of the nuclear density profile function on the formation of the fission barrier and the scission configuration. Comparison of the variational approach with the traditional liquid drop model (LDM) is presented. We show the sensitivity of the numerical results to the surface diffuseness parameter.

Nuclear deformation energy curves with the constrained Hartree-Fock method

1973 ◽  
Vol 203 (3) ◽  
pp. 433-472 ◽  
Author(s):  
H. Flocard ◽  
P. Quentin ◽  
A.K. Kerman ◽  
D. Vautherin
Keyword(s):  
Deformation Energy ◽  
Nuclear Deformation ◽  
Hartree Fock

BINARY AND TERNARY EMISSION FROM SUPERHEAVY NUCLEI

2008 ◽  
Vol 17 (10) ◽  
pp. 2221-2225 ◽  
Author(s):  
RADU A. GHERGHESCU ◽  
DORIN N. POENARU ◽  
WALTER GREINER
Keyword(s):  
Shell Model ◽  
Liquid Drop ◽  
Parent Nucleus ◽  
Exponential Model ◽  
Deformation Energy ◽  
Superheavy Nuclei ◽  
Multidimensional Space ◽  
Total Deformation ◽  
Cluster Emission ◽  
Deformation Dynamics

The two center shell model is used to calculate the level scheme transition from the superheavy parent nucleus to the emitted cluster plus the daughter nucleus. The three center shell model is also employed to compute the transition toward eventual three equal fragment partition from the superheavy nuclei. The levels are used to compute the shell corrections within the Strutinsky method. The liquid drop part is calculated using the Yukawa-plus-exponential model. The total deformation energy is then minimized over a multidimensional space of deformation. Dynamics is completed with the Werner-Wheeler tensor calculation, and cluster emission paths for binary and ternary splitting is obtained for Z = 120 isotopes.

NUCLEAR FORM FACTORS AND NUCLEON MOMENTUM DISTRIBUTIONS IN NUCLEI

1995 ◽  
Vol 04 (02) ◽  
pp. 371-384 ◽  
Author(s):  
VLADIMIR P. GARISTOV
Keyword(s):  
Excited States ◽  
Electron Scattering ◽  
Liquid Drop ◽  
Form Factors ◽  
Simple Liquid ◽  
Nuclear Surface ◽  
Elastic Electron Scattering ◽  
Nucleon Momentum ◽  
Momentum Distributions ◽  
Surface Diffuseness

A simultaneous description of nuclear form factors and momentum distributions for ground and collective excited states is presented using a simple liquid drop model with an oscillating nuclear surface. The influence of the nuclear surface diffuseness over nuclear form factors and nucleon momentum distributions for a large region of mass number is investigated. Mean square radii of nuclei in one-phonon excited states are discussed. Quasi-elastic electron scattering y-scaling functions are presented and compared with those extracted from experimental data.

SADDLE-POINT MASSES OF EVEN-EVEN ACTINIDE NUCLEI

2007 ◽  
Vol 16 (02) ◽  
pp. 459-473 ◽  
Author(s):  
JOHANN BARTEL ◽  
ARTUR DOBROWOLSKI ◽  
KRZYSZTOF POMORSKI
Keyword(s):  
Saddle Point ◽  
Liquid Drop ◽  
Theoretical Description ◽  
Nuclear Deformation ◽  
Neutron Distribution ◽  
Microscopic Approach ◽  
Atomic Nuclei ◽  
Dimensional Shape ◽  
Left Right Asymmetry

In the framework of the macroscopic-microscopic approach the Yukawa folding procedure is used together with the Lublin-Strasbourg Drop liquid-drop type energy to describe atomic nuclei in the actinide region. The nuclear deformation is described by a 4-dimensional shape parametrisation similar to the well-known Funny-Hills expression. It is demonstrated that left-right asymmetry and non-axiality are present at the first and second saddle and should be included in the theoretical description. The importance of a different deformation of the proton and the neutron distribution also appears in the present analysis.

Surface diffuseness parameter for systems withZPZT≃780

2007 ◽  
Vol 75 (4) ◽  
Author(s):  
O. A. Capurro ◽  
J. O. Fernández Niello ◽  
A. J. Pacheco ◽  
P. R. S. Gomes
Keyword(s):  
Surface Diffuseness ◽  
Diffuseness Parameter
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