HIGHLY EXCITED NUCLEAR-MOLECULES - A WAY TO EXPLAIN THE FLUCTUATIONS IN DBHIC EXCITATION-FUNCTIONS - STUDY OF THE SI-28+SI-28 COLLIDING SYSTEM AT 5.3 MEV-CENTER-DOT-A

The properties of the strong fluctuations observed in the excitation functions of Dissipative Binary Heavy Ion Collisions (DBHIC) have been studied for the system Si-28+Si-28 in the energy range 150 MeV less than or equal to E(lab) less than or equal to 156 MeV with 150 keV step laboratory incident energy, by angular distributions and excitation functions measurements. Experimental results are compared to the the recently developed Partially Overlapping Molecular Level Model (POMLM). The parameters of the model have been determined with reasonable accuracy by describing all the quantities characterizing the fluctuations in the excitation functions i.e.: Average Angular Distributions, Energy Autocorrelation Functions, Variances, Angular Correlation Coefficients. The results of the analysis; strongly support the idea of a process proceeding through the formation of an highly excited ''nuclear molecule'', Experimental data collected at the most forward angles show the effects of strong excitation of a few final channels.