scholarly journals Nucleon momentum distributions and elastic electron scattering form factors for 58Ni, 60Ni, 62Ni, and 64Ni isotopes using the framework of coherent fluctuation model

2019 ◽  
Vol 12 (24) ◽  
pp. 33-42
Author(s):  
Hasan F. Ojaimi
Keyword(s):  
Weight Function ◽  
Electron Scattering ◽  
Form Factors ◽  
Elastic Electron ◽  
Elastic Electron Scattering ◽  
Simple Method ◽  
Nucleon Momentum ◽  
Momentum Distributions ◽  
Fluctuation Model ◽  
Coherent Fluctuation

The nucleon momentum distributions (NMD) and elastic electron scattering form factors of the ground state for some 1f-2p-shell nuclei, such as 58Ni, 60Ni, 62Ni, and 64Niisotopes have been calculated in the framework of the coherent fluctuation model (CFM) and expressed in terms of the weight function lf(x)l2 . The weight function (fluctuation function) has been related to the nucleon density distribution (NDD) of the nuclei and determined from the theory and experiment. The NDD is derived from a simple method based on the use of the single particle wave functions of the harmonic oscillator potential and the occupation numbers of the states. The feature of the long-tail behavior at high momentum region of the NMD’s has been obtained by both the theoretical and experimental weight functions. The calculated elastic electron scattering form factors for considered isotopes are in reasonable agreement with those of experimental data throughout all values of momentum transfer q.

scholarly journals Nucleon momentum distributions and elastic electron scattering form factors for 48Ti and 54Fe nuclei

2019 ◽  
Vol 12 (24) ◽  
pp. 100-109
Author(s):  
Ghaith N. Flaiyh
Keyword(s):  
Weight Function ◽  
Electron Scattering ◽  
Form Factors ◽  
Elastic Electron ◽  
Elastic Electron Scattering ◽  
Simple Method ◽  
Nucleon Density ◽  
Density Distributions ◽  
Nucleon Momentum ◽  
Momentum Distributions

The nucleon momentum distributions (NMD) for the ground state and elastic electron scattering form factors have been calculated in the framework of the coherent fluctuation model and expressed in terms of the weight function (fluctuation function). The weight function has been related to the nucleon density distributions of nuclei and determined from theory and experiment. The nucleon density distributions (NDD) is derived from a simple method based on the use of the single particle wave functions of the harmonic oscillator potential and the occupation numbers of the states. The feature of long-tail behavior at high momentum region of the NMD has been obtained using both the theoretical and experimental weight functions. The observed electron scattering form factors for 48Ti and 54Fe nuclei are in reasonable agreement with the present calculations throughout all values of momentum transfer q.

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.

scholarly journals Proton momentum distributions and elastic electron scattering form factors for some Ge isotopes

2019 ◽  
Vol 15 (32) ◽  
pp. 1-12
Author(s):  
Al- Rahmani A. A.
Keyword(s):  
Electron Scattering ◽  
Form Factors ◽  
Proton Momentum ◽  
Tail Behavior ◽  
Elastic Electron Scattering ◽  
Long Tail ◽  
Fluctuation Function ◽  
Momentum Distributions ◽  
Fluctuation Model ◽  
Good Agreement

The proton momentum distributions (PMD) and the elasticelectron scattering form factors F(q) of the ground state for someeven mass nuclei in the 2p-1f shell for 70Ge, 72Ge, 74Ge and 76Ge arecalculated by using the Coherent Density Fluctuation Model (CDFM)and expressed in terms of the fluctuation function (weight function)|F(x)|2. The fluctuation function has been related to the chargedensity distribution (CDD) of the nuclei and determined from thetheory and experiment. The property of the long-tail behavior at highmomentum region of the proton momentum distribution has beenobtained by both the theoretical and experimental fluctuationfunctions. The calculated form factors F (q) of all nuclei under studyare in good agreement with those of experimental data throughout allvalues of momentum transfer q.

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