  A novel, unorthodox picture of the dynamics of heavy ion collisions is
developed using the concept of Hagedorn states. A prescription of the bootstrap
of Hagedorn states respecting the conserved quantum numbers baryon number B,
strangeness S, isospin I is implememted into the GiBUU transport model. Using a
strangeness saturation suppression factor suitable for
nucleon-nucleon-collisions, recent experimental data for the strangeness
production by the HADES collaboration in Au+Au and Ar+KCl is reasonable well
described. The experimental observed exponential slopes of the energy
distributions are nicely reproduced. Thus, a dynamical model using Hagedorn
resonance states, supplemented by a strangeness saturation suppression factor,
is able to explain essential features (multiplicities, exponential slope) of
experimental data for strangeness production in nucleus-nucleus collisions
close to threshold.
