  The introduction of optical tweezers for trapping atoms has opened remarkable
opportunities for manipulating few-body systems. Here, we present the first
bottom-up assembly of atom triads. We directly observe atom loss through
inelastic collisions at the single event level, overcoming the substantial
challenge in many-atom experiments of distinguishing one-, two-, and
three-particle processes. We measure a strong suppression of three-body loss,
which is not fully explained by the presently availably theory for three-body
processes. The suppression of losses could indicate the presence of local
anti-correlations due to the interplay of attractive short range interactions
and low dimensional confinement. Our methodology opens a promising pathway in
experimental few-body dynamics.
