Microscopic model analysis of Li11 +p elastic scattering at 62, 68.4, and 75 MeV/nucleon

M. Y. M. Hassan, M. Y. H. Farag, E. H. Esmael, and H. M. Maridi
Phys. Rev. C 79, 014612 – Published 28 January 2009

Abstract

Li11+p elastic scattering data at three energies, 62, 68.4, and 75 MeV/nucleon, are analyzed with density-dependent M3Y and KH effective nucleon-nucleon (NN) interactions in the framework of the single folding model. The parameters of the density-dependent term are adjusted to fulfill saturation of nuclear matter. The optical potentials (OP's) and cross sections are calculated using four model densities of Li11, G (one-parameter Gaussian), GG (Gaussian-Gaussian), GO (Gaussian- oscillator), and the COSMA (cluster orbital shell model approximation). Comparative studies are performed for real, imaginary, and spin-orbit potentials with the phenomenological and microscopic forms. The microscopic volume and surface imaginary potentials are constructed from both the renormalized folded potentials and their derivatives. The sensitivity of the differential cross section to the four densities is tested. It is found that the Li11+p elastic scattering cross sections depend strongly upon the behavior of the corresponding potentials. The GG and GO densities obtained from analyzing the data, using Glauber multiple scattering theory at high energies, give good results at energies below 100 MeV/nucleon in the framework of the folding model. The OP's calculated in the microscopic form using few parameters give good agreement with the data. Thus, it is not necessary to introduce a large number of arbitrary fitting parameters as done in the phenomenological and semimicroscopic OP's. The KH effective interaction successfully describes Li11+p elastic scattering as the popular M3Y interaction. The obtained results of the reaction cross section are in good agreement with previous calculations.

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  • Received 17 July 2008

DOI:https://doi.org/10.1103/PhysRevC.79.014612

©2009 American Physical Society

Authors & Affiliations

M. Y. M. Hassan1, M. Y. H. Farag1, E. H. Esmael1, and H. M. Maridi1,2

  • 1Physics Department, Faculty of Science, Cairo University, Cairo, Egypt
  • 2National Atomic Energy Commission, Sana'a, Yemen

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Vol. 79, Iss. 1 — January 2009

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