Deformed Potential Energy of Super Heavy Element Z = 120 in a Generalized Liquid Drop Model

作     者：陈宝秋 马中玉 朱志远 宋宏秋 赵耀林 

作者机构：ChinaInstituteofAtomicEnergyBeijing102413//CentreofTheoreticalNuclearPhysicsNationalLaboratoryofHeavyIonAcceleratorofLanzhouLanzhou730000 ShanghaiInstituteofAppliedPhysicsChineseAcademyofSciencesShanghai201800//CentreofTheoreticalNuclearPhysicsNationalLaboratoryofHeavyIonAcceleratorofLanzhouLanzhou730000 ShanghaiInstituteofAppliedPhysicsChineseAcademyofSciencesShanghai201800 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2005年第22卷第2期

页      面：302-305页

核心收录：

学科分类：07[理学] 070203[理学-原子与分子物理] 0702[理学-物理学] 

基　　金：国家自然科学基金 国家973计划 中国科学院知识创新工程项目 

主　　题：势能变形 超重元素 Z = 120 广义液滴模型 修正计算 

摘      要：The macroscopic deformed potential energy for super-heavy elements Z = 120 is determined within a generalized liquid drop model (GLDM). The shell correction is calculated with the Strutinsky method and the microscopic single particle energies are derived from the shell model in an axially deformed Woods–Saxon potential with the same quasi-molecular shape. The total potential energy of a nucleus is calculated by the macro-microscopic method as the summation of the liquid-drop energy and the Strutinsky shell correction. The theory is adopted to describe the deformed potential energies in a set of cold reactions. The neck in the quasi-molecular shape is responsible to the deep valley of the fusion barrier due to shell corrections. In the cold fusion path, the double-hump fusion barrier is predicted by the shell correction and complete fusion events may occur. The results show that some of projectile–target combinations in the entrance channel, such as 50Ca+252Fm→ 302120* and 58Fe+244Pu→ 302120*, favour the fusion reaction, which can be considered as candidates for the synthesis of super heavy nuclei Z = 120 and the former might be the best cold fusion reaction to produce the nucleus 302120 among them.