Nucleon Momentum Distributions and Elastic Electron Scattering FormFactors for some sd-shell Nuclei

Abstract

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 Cl Cl 35 37 , and K 39 nuclei are very well reproduced by the present
calculations throughout all values of momentum transfer q.
PACS: 25 . 30 .Bf.