Cluster multifragmentation and percolation transition: A quantitative comparison for two systems of the same size - art. no. 033202

Using a recently developed multicoincidence technique, fragmentation result ing from collisions between high energy (60 keV/u) H-27(+) ions with an He target are investigated on an event by event basis. The data obtained are a nalyzed in terms of fluctuations in the fragment size distribution. A compa rison with results from two different three-dimensional (3D) lattice bond p ercolation models of the same size (27 constituents) indicates the presence of a critical behavior in the decaying finite system and the importance of accounting in the percolation model for the specific binding situation in the hydrogen cluster ion.