Investigation ofdensity and form factor of some F  isotopes using Hartree-Fock and shell model calculations

Z. Majeed, Wasan

	Investigation ofdensity and form factor of some F isotopes using Hartree-Fock and shell model calculations
Iraqi Journal of Physics
Article 1, Volume 14, Issue 30, 2016, Pages 158-171
Author
Wasan Z. Majeed
Abstract
Structure of unstable21,23,25,26F nuclei have been investigated using Hartree – Fock (HF) and shell model calculations. The ground state proton, neutron and matter density distributions, root mean square (rms) radii and neutron skin thickness of these isotopes are studied. Shell model calculations are performed using SDBA interaction. In HF method the selected effective nuclear interactions, namely the Skyrme parameterizations SLy4, Skeσ, SkBsk9 and Skxs25 are used. Also, the elastic electron scattering form factors of these isotopes are studied. The calculatedform factors in HF calculations show many diffraction minima in contrary to shell model, which predicts less diffraction minima. The long tail behaviour in nuclear density is noticeable seen in HF more than shell model calculations. The deviation occurs between shell model and HF results are attributed to the sensitivity of charge form factors to the change of the tail part of the charge density. Calculations done for the rms radii in shell model showed excellent agreement with experimental values, while HF results showed an overestimation in the calculated rms radii for 21,23F and good agreement for 25,26F. In general, it is found that the shell model and HF results have the same behaviour when the mass number (A) increase.
Keywords
shell model; Hartree; electron scattering; rms charge; neutron; and matter radii

Statistics Article View: 80 PDF Download: 13