Two-fragment correlation functions have been measured for ^(40)Ar+^(197)Au collisions at E/A=25 MeV.Based on the three-body trajectory calculation,a mean emission time of T~450 fm/c for light fragments was extracted f...Two-fragment correlation functions have been measured for ^(40)Ar+^(197)Au collisions at E/A=25 MeV.Based on the three-body trajectory calculation,a mean emission time of T~450 fm/c for light fragments was extracted from the measured correlation functions.This result suggests that the sequential decay occurs at this energy.展开更多
The Boltzmann-Nordheim-Vlasov (BNV) model was employed to investigate the giant monopole resonance (GMR) built on very excited residula nuclei formed in heavy-ion collisions. Roughly speaking the GMR energy of BNV mod...The Boltzmann-Nordheim-Vlasov (BNV) model was employed to investigate the giant monopole resonance (GMR) built on very excited residula nuclei formed in heavy-ion collisions. Roughly speaking the GMR energy of BNV model is very similar to the value given by the empirical formual EGMR = 31.2A^(-l/3) + 20.6A^(-l/6) and hardly changes with impact parameter and bombarding energy.展开更多
基金Supported by the National Natural Science Foundation of Chinathe Foundation of the Chinese Academy of Sciences.
文摘Two-fragment correlation functions have been measured for ^(40)Ar+^(197)Au collisions at E/A=25 MeV.Based on the three-body trajectory calculation,a mean emission time of T~450 fm/c for light fragments was extracted from the measured correlation functions.This result suggests that the sequential decay occurs at this energy.
基金the Foundation of the Chinese Academy of Sciences。
文摘The Boltzmann-Nordheim-Vlasov (BNV) model was employed to investigate the giant monopole resonance (GMR) built on very excited residula nuclei formed in heavy-ion collisions. Roughly speaking the GMR energy of BNV model is very similar to the value given by the empirical formual EGMR = 31.2A^(-l/3) + 20.6A^(-l/6) and hardly changes with impact parameter and bombarding energy.