Within the framework of the dinuclear system(DNS)model by implementing the cluster transfer into the dissipation process,we systematically investigated the energy spectra and the angular distribution of the pre-equili...Within the framework of the dinuclear system(DNS)model by implementing the cluster transfer into the dissipation process,we systematically investigated the energy spectra and the angular distribution of the pre-equilibrium clusters(n,p,d,t,^(3)He,α,6,^(7)Li,^(8,9)Be)in the massive transfer reactions of^(12C)+^(209)Bi,^(14)N+^(159)Tb,^(14)N+^(169)Tm,^(14)N+^(181)Ta,^(14)N+^(197)Au,^(14)N+^(209)Bi,58,64,^(72)Ni+^(198)Pt near the Coulomb barrier energies.It was found that the neutron emission is the most probable in comparison with the charged particles,and theαyields are comparable to the hydrogen isotopes in magnitude.Prequilibrium clusters are mainly produced from projectile-like and target-like fragments during the evolution of the dinuclear system.The kinetic energy spectra manifest a Boltzmann distribution,and the Coulomb potential influences the structure.The pre-equilibrium clusters follow the angular distribution of the multinucleon transfer fragments.展开更多
基金supported by the National Natural Science Foundation of China(Nos.12175072 and 12311540139).
文摘Within the framework of the dinuclear system(DNS)model by implementing the cluster transfer into the dissipation process,we systematically investigated the energy spectra and the angular distribution of the pre-equilibrium clusters(n,p,d,t,^(3)He,α,6,^(7)Li,^(8,9)Be)in the massive transfer reactions of^(12C)+^(209)Bi,^(14)N+^(159)Tb,^(14)N+^(169)Tm,^(14)N+^(181)Ta,^(14)N+^(197)Au,^(14)N+^(209)Bi,58,64,^(72)Ni+^(198)Pt near the Coulomb barrier energies.It was found that the neutron emission is the most probable in comparison with the charged particles,and theαyields are comparable to the hydrogen isotopes in magnitude.Prequilibrium clusters are mainly produced from projectile-like and target-like fragments during the evolution of the dinuclear system.The kinetic energy spectra manifest a Boltzmann distribution,and the Coulomb potential influences the structure.The pre-equilibrium clusters follow the angular distribution of the multinucleon transfer fragments.
