双核系统核子转移驱动势与复合核的最佳激发能

Nucleon Transfer Driven Potential and the Optimum Excitation Energy of Compound Nucleus Formed in Dinuclear Systems

计算了以208Pb为靶的一系列重离子熔合反应双核系统核子转移驱动势.它制约由输运方程所支配的核子转移速率,因而确定了双核系统形成复合核的几率.并由此可确定形成复合核所必须的最低激发能,即形成最稳定复合核的最佳激发能,得到了与已知实验值基本符合的结果.

Particle transfer driven potentials in Dinuclear System (DNS) in heavy ion collisions based on208Pb target are calculated. The driven potential controls the particle transfer velocity in the process governed by the diffusion equation, and as a consequence determines the compound nuclear formation probability of DNS. The minimum excitation energy to form a compound nucleus, which is the optimum excitation energy to form the most stable compound nucleus, has been calculated, and the results are basically in agreement with the known experimental data.