Program - Brookhaven National Laboratory

The optical model potential (OMP) is an essential tool in nuclear reaction studies. The investigations
of OMP based on a fundamental microscopic theory provide a reliable basis to explore nuclear reaction
mechanisms in particular for cases without experimental data. In this work, the microscopic OMP is
investigated in the Dirac-Brueckner-Hartree-Fock (DBHF) framework with Bonn B meson exchange interaction.
Both real and imaginary parts of isospin-dependent self-energies are uniformly derived from
a projection on Lorentz invariant amplitudes Ref.[1,2]. Due to the rigorous deterministic approaches in
the present DBHF theory, the many body calculation does not contain any adjustable parameter both
for the symmetric nuclear matter(N.M.) and the asymmetric N.M.; therefore, the isospin-dependent OMP
based on such theory should have a larger predictive power when applied in the study of unstable nuclei.
We construct the Dirac potentials (scalar and vector potentials) according to the self-energies, and the
potentials of equivalent Schrödinger equation for finite nuclei are determined correspondingly through an
improved local density approximation (ILDA) method. We systematically analyze the scattering reactions
of n, p + 12 C- 208 Pb in terms of this RMOP within incident energy 100keV