Improved macroscopic microscopic mass formula

• 作者: Tian-Liang Zhao Xiao-Jun Bao Hong-Fei Zhang
• 来源期刊: 中国物理C（英文版）
• 年，卷（期）: 2021,（7）
• 所属期刊栏目: NUCLEAR PHYSICS
• 页码范围: 247-253
• 页数: 7页
• 语种: 英文
• DOI: 10.1088/1674-1137/abfaf2

摘要

A nuclear mass formula based on the macroscopic microscopic approach is proposed,in which the num-ber of model parameters is reduced compared with other macroscopic microscopic models.The root mean square(RMS) deviation with respect to 2314 training sets (measured nuclear masses) is reduced to 0.447 MeV,and the cal-culated value of each nucleus is no more than 0.8％ different from the experimental value.The single and two nucle-on separation energies and the shell gaps are calculated to test the model.The shell corrections and double magic number of superheavy nuclei are also analyzed.