Triton-triton correlation functions have been measured for^(40)Ar+^(197)Au collisions at E/A=25 MeV.The anticorrelations at small relative momenta are observed and become more pronounced with the increasing total ener...Triton-triton correlation functions have been measured for^(40)Ar+^(197)Au collisions at E/A=25 MeV.The anticorrelations at small relative momenta are observed and become more pronounced with the increasing total energy of two coincident tritons.Comparison with the three-body trajectory calculations indicates that the average emission times lie between 100 and 300fm/c for tritons.展开更多
Studies of the synthesis of SHEs have attracted much attention both theoretically and experimentally in recent years. However, the fusion process of heavy system is very complicated, because it involves the deformatio...Studies of the synthesis of SHEs have attracted much attention both theoretically and experimentally in recent years. However, the fusion process of heavy system is very complicated, because it involves the deformation of colliding system, nucleon transfer, energy and angular momentum dissipation etc. The interaction barrier between two heavy colliding nuclei plays an important role in the fusion process,展开更多
Isospin effect of multifragmentation for the finite nuclei 112Sn and 132Sn is studied by using a phenomeno-logical asymmetric nuclear equation of state and an isospin dependent quantum molecular dynamics (IQMD) model....Isospin effect of multifragmentation for the finite nuclei 112Sn and 132Sn is studied by using a phenomeno-logical asymmetric nuclear equation of state and an isospin dependent quantum molecular dynamics (IQMD) model. The initial distribution of nucleons in phase space is randomly sampled by using temperature dependent Hartree-Fock method in coordinate and momentum space respectively, and dynamical evolution of nucleons is described by IQMD. Various initial density contribution for the intermediate mass fragment (IMF) production is analyzed at a certain temperature. It is found that the isospin effect gradually vanishes with the temperature increasing as shown in Fig.1.展开更多
基金Supported by the National Natural Science Foundation of Chinathe Science Foundation of the Chinese Academy of Science.
文摘Triton-triton correlation functions have been measured for^(40)Ar+^(197)Au collisions at E/A=25 MeV.The anticorrelations at small relative momenta are observed and become more pronounced with the increasing total energy of two coincident tritons.Comparison with the three-body trajectory calculations indicates that the average emission times lie between 100 and 300fm/c for tritons.
文摘Studies of the synthesis of SHEs have attracted much attention both theoretically and experimentally in recent years. However, the fusion process of heavy system is very complicated, because it involves the deformation of colliding system, nucleon transfer, energy and angular momentum dissipation etc. The interaction barrier between two heavy colliding nuclei plays an important role in the fusion process,
文摘Isospin effect of multifragmentation for the finite nuclei 112Sn and 132Sn is studied by using a phenomeno-logical asymmetric nuclear equation of state and an isospin dependent quantum molecular dynamics (IQMD) model. The initial distribution of nucleons in phase space is randomly sampled by using temperature dependent Hartree-Fock method in coordinate and momentum space respectively, and dynamical evolution of nucleons is described by IQMD. Various initial density contribution for the intermediate mass fragment (IMF) production is analyzed at a certain temperature. It is found that the isospin effect gradually vanishes with the temperature increasing as shown in Fig.1.
