Superscaling in Nuclei: A Search for Scaling Function Beyond the Relativistic Fermi Gas Model

Details Superscaling in Nuclei: A Search for Scaling Function Beyond the Relativistic Fermi Gas Model Superscaling in Nuclei: A Search for Scaling Function Beyond the Relativistic Fermi Gas Model

2004-02-25

arxiv.org/abs/nucl-th/0402085v1

Phys.Rev. C69 (2004) 044321

Physics

Nuclear Physics

Nuclear Theory

16 pages, 5 figures, submitted for publication to Phys. Rev. C

Scientific paper

10.1103/PhysRevC.69.044321

We construct a scaling function $f(\psi^{\prime})$ for inclusive electron scattering from nuclei within the Coherent Density Fluctuation Model (CDFM). The latter is a natural extension to finite nuclei of the Relativistic Fermi Gas (RFG) model within which the scaling variable $\psi^{\prime}$ was introduced by Donnelly and collaborators. The calculations show that the high-momentum components of the nucleon momentum distribution in the CDFM and their similarity for different nuclei lead to quantitative description of the superscaling in nuclei. The results are in good agreement with the experimental data for different transfer momenta showing superscaling for negative values of $\psi^{\prime}$, including those smaller than -1.

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