Core-polarization effects on C2 form factors of p-shell nuclei

2001 ◽  
Vol 696 (3-4) ◽  
pp. 442-452 ◽  
Author(s):  
R.A. Radhi ◽  
A.A. Abdullah ◽  
Z.A. Dakhil ◽  
N.M. Adeeb
Keyword(s):  
Form Factors ◽  
Core Polarization ◽  
Polarization Effects

scholarly journals O2 State in 18 O by using Core – Polarization effects

2008 ◽  
pp. 66-72
Keyword(s):  
Perturbation Theory ◽  
Experimental Studies ◽  
Form Factors ◽  
Wave Model ◽  
Collective Model ◽  
Core Polarization ◽  
Polarization Effects ◽  
The Core ◽  
The Subject ◽  
Space Wave

Coulomb form factors for E0 transition in 18O are discussed taking into account core-polarization effects. These effects are taken into account through the collective model of Tassie and also through a microscopic perturbation theory including excitations up to 2p1f shell. Space wave model functions defined for the orbits 1 and 2125O nucleus has been the subject of extensive theoretical and experimental studies, which received much attention in last decade [Alex Brown et.al.2005]. The 18O system contains two neutrons in addition to the16O core distributed in the sd – shell. d1 are obtained from the diagonalization of the interaction Hamilonian of Wildenthal. The calculations include the 0 2state with excitation energies3.6337MeV. The core – polarization effects which incorporate the ollective model of Tassei describe the data very well for this state.

Microscopic Large Scale psd Shell Model with M3Y Residual Interaction to Calculate Electron Scattering Form Factors

2017 ◽  
Vol 6 (1) ◽  
pp. 56-61
Author(s):  
Khalid S. Jassim ◽  
Rawaa A. Abdul-Nabe
Keyword(s):  
Shell Model ◽  
Electron Scattering ◽  
Large Scale ◽  
Theoretical Calculations ◽  
Form Factors ◽  
Scale Model ◽  
Core Polarization ◽  
Model Calculations ◽  
Polarization Effects ◽  
Realistic Interaction

The longitudinal and the transverse electron scattering form factors for 6Li, 9Be, 11B and 12C nuclei have been studied with and without core polarization effects using shell model calculations. The psdmwk is used as effective interaction for psd-shells. The core-polarization effects are calculated in the first-order perturbation theory including excitations up to 4ħω using the Michigan three-range Yakawa M3Y as a realistic interaction. The wave functions of radial single particle matrix elements have been calculated with harmonic oscillator potential. For all nuclei under studying, Comparison between experimental and theoretical calculations show that the form factors with core-polarization effect calculations give good consistency with experiment data. So we concluded that the large scale model space enhanced the results to become closed to the experimental data.

Core-polarization effects on magnetic form factors ofPb207,Pb208, andBi209

1982 ◽  
Vol 26 (2) ◽  
pp. 750-753 ◽  
Author(s):  
Toshio Suzuki ◽  
Makoto Oka ◽  
Hiroyuki Hyuga ◽  
Akito Arima
Keyword(s):  
Form Factors ◽  
Core Polarization ◽  
Polarization Effects ◽  
Magnetic Form Factors

Core polarization effects up to 12ℏω in 7Li and 10B nuclei

2019 ◽  
Vol 28 (11) ◽  
pp. 1950102
Author(s):  
Adie D. Salman ◽  
Noor T. Tilab ◽  
Samah A. Al-Ramahi ◽  
I. Hossain
Keyword(s):  
Shell Model ◽  
Momentum Transfer ◽  
Excited States ◽  
Electron Scattering ◽  
Form Factors ◽  
Core Polarization ◽  
Polarization Effects ◽  
Empirical Results ◽  
Hole Excitation ◽  
Reasonable Description

Shell model and core polarization (CP) effects have been used to calculate the transverse and longitudinal electron scattering form factors for 7Li and [Formula: see text]B nuclei. The calculations considered one particle–one hole excitation up to 12[Formula: see text][Formula: see text]. This manner seems to be essential for obtaining the best explanation for empirical results. Therefore, adding the excited states up to 12[Formula: see text][Formula: see text] gives a reasonable description for transverse and longitudinal form factors. Furthermore, with these calculations, it is possible to get a very close location of diffraction minimum, and the behavior of the momentum transfer is described properly at the high configuration for 7Li compared with 6[Formula: see text][Formula: see text] energy.

Core polarization effects on M1 form factors of 13C and 12C

1981 ◽  
Vol 106 (1-2) ◽  
pp. 19-23 ◽  
Author(s):  
T. Suzuki ◽  
H. Hyuga ◽  
A. Arima ◽  
K. Yazaki
Keyword(s):  
Form Factors ◽  
Core Polarization ◽  
Polarization Effects

scholarly journals New Transition and Energy Levels of Three-Times Ionized Krypton (Kr IV)

Atoms ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 48
Author(s):  
M. Raineri ◽  
M. Gallardo ◽  
J. Reyna Almandos ◽  
A. G. Trigueiros ◽  
C. J. B. Pagan
Keyword(s):  
Transition Probabilities ◽  
Energy Levels ◽  
Pulsed Discharge ◽  
Core Polarization ◽  
Polarization Effects ◽  
Hartree Fock ◽  
Theta Pinch ◽  
New Energy ◽  
First Time

A capillary pulsed-discharge and a theta-pinch were used to record Kr spectra in the region of 330–4800 Å. A set of 168 transitions of these spectra were classified for the first time. We extended the analysis to twenty-five new energy levels belonging to 3s23p24d, 3s23p25d even configurations. We calculated weighted transition probabilities (gA) for all of the experimentally observed lines and lifetimes for new energy levels using a relativistic Hartree–Fock method, including core-polarization effects.

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