Angular correlation of excitation functions in dissipative heavy ion collision 27Al+27Al has been measured. The incident beam energies ranged from 114MeV to 127MeV in steps of 200keV. The angular analysis region was c...Angular correlation of excitation functions in dissipative heavy ion collision 27Al+27Al has been measured. The incident beam energies ranged from 114MeV to 127MeV in steps of 200keV. The angular analysis region was continuous from 50°to 90°in the center of mass system. An angular coherent width, at least 4n° was obtained. This long-range angular correlation could not be interpreted in the framework of the standard statistical reaction theory with state of equilibrium or near equilibrium, maybe it reveals the formation of a new kind of dissipative structure in the reaction of 27Al+27AI with the state that is far from equilibrium.展开更多
基金the National Natural Science Foundation of China (No.19775057), the Chinese Academyof Sciences (KJ95T-03) and the Laboratoric
文摘Angular correlation of excitation functions in dissipative heavy ion collision 27Al+27Al has been measured. The incident beam energies ranged from 114MeV to 127MeV in steps of 200keV. The angular analysis region was continuous from 50°to 90°in the center of mass system. An angular coherent width, at least 4n° was obtained. This long-range angular correlation could not be interpreted in the framework of the standard statistical reaction theory with state of equilibrium or near equilibrium, maybe it reveals the formation of a new kind of dissipative structure in the reaction of 27Al+27AI with the state that is far from equilibrium.
