Experimental Test of the Non-reproducibility of CrossSections in Dissipative Reactions

Two independent measurements of cross sections for the ¹⁹F+⁹³Nb dissipative heavy ion collisions have been performed at incident energies from 100 to 108 MeV in a step of 250 keV. In the two measurements, two independently prepared targets were used. All other experimental conditions were identical in both experiments. The data indicate that non-reproducibility of the non-self-averaging oscillation is yielded in the two measurements. This supports the recent theoretical predictions of spontaneous coherence, slow phase randomization and extreme sensitivity in highly excited complex quantum systems.