超重原子核区的壳效应研究

The studies of shell effects in superheavy region

采用Nilsson势的宏观-微观模型,对Z=114同位素链上原子核基态的结合能、衰变能和四极形变进行了系统的计算,并将理论计算结果与实验数据和其他理论模型的结果进行了详细的比较.研究发现,理论计算结果和实验数据符合,也与其他模型的计算结果符合,表明宏观-微观模型对超重核性质的研究是可靠和有效的.对形变和壳效应的分析表明在宏观-微观模型里Z=114和N=184是一个闭壳.

The ground-state binding energies, alpha-decay energies, and quadrupole deformations of nuclei in the Z = 114 isotopes are systematic calculated by the macroscopic-microscopic （MM） model for Nilsson potential. The calculated results are compared with experimental data and with other theoretical results. It is shown that the calculated results are close to other theoretical results and consistent with the experimental data, which indicates that the MM model is reliable in describing the properties of superheavy nuclei. Studies on the shell effects and deformations show that Z = 114 and N = 184 are closed shells in the MM model.