Deformed Potential Energy of ^263Db in a Generalized Liquid Drop Model
变形势能263Db的推广的液滴模型作者机构：CenterofTheoreticalNuclearPhysicsNationalLaboratoryofHeavyIonAcceleratorofLanzhouLanzhou730000 InstituteofTheoreticalPhysicsChineseAcademyofSciencesBeijing100080 ChinaInstituteofAtomicEnergyBeijing102413
出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)
年 卷 期：2003年第20卷第11期
页 面：1936-1939页
核心收录：
学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0827[工学-核科学与技术] 082701[工学-核能科学与工程] 0704[理学-天文学]
主 题：nuclei (nuclear physics) Summation SHELL MODELS nuclear size Drops Heavy ion accelerators entry Potential energy
摘 要：The macroscopic deformed potential energy for super-heavy nuclei 263Db, which governs the entrance and alpha decay channels, is determined within a generalized liquid drop model (GLDM). A quasi-molecular shape is assumed in the GLDM, which includes the volume-, surface-, and Coulomb-energies, the proximity effects, the mass asymmetry, and an accurate nuclear radius. The microscopic single particle energies are derived from a shell model in an axially deformed Woods-Saxon potential with the quasi-molecular shape. The shell correction is calculated by the Strutinsky method. The total deformed potential energy of a nucleus can be calculated by the macro-microscopic method as the summation of the liquid-drop energy and the Strutinsky shell correction. The theory is applied to predict the deformed potential energy of the experiment 22DNe + 241Am → 263Db* → 259Db + 4n, which was performed on the Heavy Ion Accelerator in Lanzhou. It is found that the neck in the quasi-molecular shape is responsible for the deep valley of the fusion barrier due to the shell corrections. In the cold fusion path, the double-hump fusion barrier is predicted by the shell correction and complete fusion events may occur.
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