  Clustering of the four-nucleon system at kinetic freezeout conditions is
studied using path-integral Monte Carlo techniques. This method seeks to
improve upon previous calculations which relied on approximate semiclassical
methods or few-body quantum mechanics. Estimates are given for the decay
probabilities of the 4N system into various light nuclei decay channels and the
strength of spatial correlations is characterized. Additionally, a simple model
is presented to describe the impact of this clustering on nucleon multiplicity
distributions. The effects of a possible modification of the inter-nucleon
interaction due to the close critical line (and hypothetical QCD critical
point) on the clustering are also studied.
