  In this note, using the colour string model, we study the configuration space
distribution of stopped nucleons in heavy-ion collisions. We find that the
stopped nucleons from the target and the projectile end up separated from each
other by the distance increasing with the collision energy. In consequence, for
the center of mass energies larger than 6 or 10 GeV (depending on the details
of the model) it appears that the system created is not in thermal and chemical
equilibrium, and the net baryon density reached is likely not much higher than
that already present in the colliding nuclei.
