Weizs?cker-Skyrme核质量公式的理论预言能力研究  

Predictive Power of the Weizs?cker-Skyrme Nuclear Mass Model

作　　者：陈梦华[1] 刘敏[1] 王宁[1] 

机构地区：[1]广西师范大学物理科学与技术学院,广西桂林541004

出　　处：《广西师范大学学报（自然科学版）》2018年第1期1-8,共8页Journal of Guangxi Normal University:Natural Science Edition

基　　金：国家自然科学基金(11422548);广西自然科学基金(2015GXNSFDA139004)

摘　　要：本文基于Weizs?cker-Skyrme(WS4)原子核质量公式,系统地分析了WS4核质量公式理论值与AME2016中实验值的偏差。结果表明,WS4核质量公式的计算结果能够很好地再现最新的实验数据,58个新测原子核质量的均方根偏差为0.543 MeV。WS4核质量公式理论计算结果与实验结果在重核区域符合得很好,为新核素以及超重元素的研究提供了参考,还进一步检验了径向基函数方法可以非常有效地提高WS4核质量公式的计算精确度。Based on Weizs/ieker-Skyrme （WS4） nuclear mass formula, the predictive power of the model is investigated. The deviation between the predicted masses with the WS4 model and the experimental data in AME2016 is calculated. The latest experimental data could be well reproduced by the calculated results of the WS4 nuclear mass formula,and the rms deviation of the 58 ＂new＂ masses is 0.543 MeV. The predictions of the WS4 nuclear mass formula are in good agreement with the experimental data in the heavy nuclei and superheavy nuclei region, which provides a reliable tool for the study of the new superheavy nuclei. In addition, the radial basis function approach can be used to further improve the accuracy of the WS4 nuclear mass formula.

关 键 词：原子核质量公式 理论预言 径向基函数方法 超重原子核 

分 类 号：O571[理学—粒子物理与原子核物理]