Analysis of proton scattering of stable and exotic light nuclei using an energy-dependent microscopic optical potential

H M Maridi,E H Esmael,M Y H Farag

doi:10.1051/epjconf/201610708007

H M Maridi, E H Esmael + Show 1 more

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https://doi.org/10.1051/epjconf/201610708007

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Abstract

The proton elastic scattering off the 9,10,11,12 Be isotopes at a wide energy range from 3 to 200 MeV/nucleon is analyzed using the optical model with the partial-wave expansion method. The microscopic optical potential (OP) is taken within the single-folding model. The density- and isospin-dependent M3YParis nucleon-nucleon (NN ) interaction is used for the real part and the NN -scattering amplitude of the highenergy approximation for the imaginary one. The cross-section data are reproduced well at energies up to 100 MeV/nucleon by use of the partial-wave expansion. For higher energies, the eikonal approximation is successfully used. The volume integrals of the OP parts have systematic energy dependencies and they can be parameterized as functions of energy. From these parametrization, an energy-dependent OP can be obtained.

Highlights

Study of light-nuclei properties is considered as an important and exciting research topic in modern nuclear physics
In Ref. [1], we studied the cross sections for the proton elastic scattering of helium and lithium isotopes at incident energies below 160 MeV/nucleon using the optical model analysis with the partial-wave expansion method
We present a microscopic analysis with the partial-wave expansion method for the cross-section data of proton elastic scattering off beryllium isotopes over a wide range of energies from few MeVs/nucleon up to 200 MeV/nucleon

Summary

Introduction

Study of light-nuclei properties is considered as an important and exciting research topic in modern nuclear physics. To understand the structure and reactions of the light nuclei, it is useful to study the cross sections of the proton elastic scattering on these nuclei. [1], we studied the cross sections for the proton elastic scattering of helium and lithium isotopes at incident energies below 160 MeV/nucleon using the optical model analysis with the partial-wave expansion method. The results are in agreement with the data until to 100 MeV/nucleon. We present a microscopic analysis with the partial-wave expansion method for the cross-section data of proton elastic scattering off beryllium isotopes over a wide range of energies from few MeVs/nucleon up to 200 MeV/nucleon. For E ≥ 50 MeV/nucleon, the cross sections are recalculated by using the eikonal approximation that based on the Glauber theory and they are compared with the partial-wave expansion method.

Theoretical calculations

Results and discussion

Summary