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

The proton elastic scattering off the ^9,10,11,12Be 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 M3Y-Paris nucleon-nucleon (NN) interaction is used for the real part and the NN-scattering amplitude of the high energy approximation for the imaginary one. The cross-section data are reproduced well at energies up to 100 MeV/nucleon by the 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. (authors)