Analysis of energy autocorrelation functions in dissipative heavy ion collision of ~27al + 27 Al

摘要

The excitation functions wee measured in the reaction of `27 Al + ~27Al at incident energies form 114 MeV to 127 MeV in steps of 200 keV. The detection angles were continuously covered from 10°to 57°in the laboratory system. The energy autocorrelation functions of the dissipative fragments were analyzed by using different approaches. The nonself-averaging oscillations in the excitation functions were considered due to the angular momentum coherence and damping of the coherent nuclear rotation. The damping results from a quantum chaotic motion.