  We describe how quasiclassical relative positions of particles emerge in an
initially delocalized quantum system as scattering of a probe beam is observed.
We show that in the multiparticle case this localization in position space
occurs via intermediate states that are quantum superpositions of spatial
configurations. These superpositions are robust to consecutive scattering
events, and scattering alone does not lead to their decoherence. Instead the
free evolution of the system combines with scattering to destroy these
superpositions, leading the particles to adopt classical-like positions
relative to one another.
