Statistical model analysis of ALADIN multifragmentation data

Abstract

Using a statistical model for nuclear multifragmentation we analyze the ALADIN multifragmentation data from Au induced reactions on various targets at a beam energy of 600 MeV/nucleon. By adjusting excitation energies of fragmenting heavy residues such that the correlation between the average multiplicity of intermediate mass fragments versus Z bound can be well reproduced, we find that all experimental observables which we have studied can be well reproduced simultaneously. The extracted excitation energies of heavy residues provide a strong constraint on the reaction dynamics leading to the formation of the residues.