Non-equilibrated Emission of Intermediate Mass Fragments in 25 MeV/n 40 Ar+ nat Ag Reaction

In order to clarify whether statistical or dynamical treatments for emission of intermediate mass fragments (IMFs) will be needed in the intermediate energy heavy ion collisions, the measured angular and energy distributions of IMF (3 ≤ Z ≤ 6) in 25 MeV/n 40Ar+natAg were analyzed by means of statistical calculation code GEMINI and quantum molecular dynamics code (QMD). While the angular distribution calculations with GEMINI code are not compatible with the experimental ones, the QMD calculations for inclusive angular distributions and energy spectra of IMF are in good agreement with the measured ones.