Microscopic analysis of nucleus-nucleus elastic scattering at intermediate energies

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Abstract
An effective nucleon-nucleon amplitude for bound nucleons taking into account medium effects such as Fermi motion and Pauli blocking has been derived from the Bethe-Goldstone equation, using a Monte-Carlo simulation of a nucleon-nucleon collision in the nuclear medium. The obtained amplitude is local and density dependent. This amplitude has been used in a local density approximation to analyse microscopically nucleus-nucleus elastic scattering at intermediate energies. The coupling to low-lying collective states has been explicitly included. This parameter free analysis reproduces reasonably well the experimental data down to an energy of 30- and up to 200 MeV/nucleon