| Issue |
J. Phys. Colloques
Volume 47, Number C4, Août 1986
International Conference on Heavy Ion Nuclear Collisions in the Fermi Energy Domain
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|---|---|---|
| Page(s) | C4-111 - C4-123 | |
| DOI | https://doi.org/10.1051/jphyscol:1986415 | |
J. Phys. Colloques 47 (1986) C4-111-C4-123
DOI: 10.1051/jphyscol:1986415
NUCLEUS-NUCLEUS POTENTIAL ; THEORETICAL ASPECTS IN THE 20-100 MeV/u RANGE
A. FAESSLER1, R. LINDEN1, N. OHTSUKA1 and F.B. MALIK21 Institut für Theoretische Physik der Universität Tübingen, D-7400 Tübingen, F.R.G.
2 Dept. of Physics, University of Southern Illinois at Carbondale, IL 92902 Carbondale, U.S.A.
Abstract
The method developed by us previously for calculating the real and imaginary part of the optical potential from the nucleon-nucleon (NN) interaction is extended and refined in several ways : (i) We request now selfconsistency so that the same force (Reid soft core) determines the ground state properties of the two interacting nuclei including binding energies and mass distributions and also the optical potential. (ii) A Weizsäcker like surface term (Δρ)2 is added, which cannot be determined in infinite unclear matter. (iii) We use for the density of the two interacting nuclei two limiting assumptions : In the sudden approximation the two densities are added for each distance R of the two nuclei. In the adiabatic approach we do not allow that the density gets larger than the saturation density. That means that the total density adjusts optimally for each distance. The real and the imaginary part of the energy per nucleon in two nuclear matters flowing through each other is shown as a function of the density for different average relative kinetic energies. The real and imaginary parts of the sudden and adiabatic potentials are given for 12C+12C, 16O+16O, 40Ca+40Ca and 208Pb+208Pb for different bombarding energies. Elastic and inelastic cross sections are given for 12C+12C in a coupled channel approach for ELab=300 and 1016 MeV.