摘要
结合径向基函数方法,我们将常用的几种原子核质量模型的精度提高了约10%~40%。留一交叉验证与AME03-11测试表明径向基函数方法是一种非常强大并且实用的工具。考虑径向基函数修正后,原子核质量模型能够更好地描述实验新测量原子核质量的数据。这一工作对于核天体物理、超重核合成及原子核对称能等方面的研究具有很高的应用价值。
Combining the radial basis function(RBF) approach,the accuracy and predictive power of some global nuclear mass models are significantly improved.The root-mean-square deviation between the experimental data for 2 149 known masses and predictions from four models falls to ~200 keV.The leave-one-out cross validation and AME03-11 tests show that the RBF approach is a very powerful and useful tool for further improving the reliability of mass models.The RBF corrections for some global nuclear mass models are also presented,which is helpful for evaluating model errors and improving model accuracy.
出处
《广西师范大学学报(自然科学版)》
CAS
北大核心
2012年第3期59-63,共5页
Journal of Guangxi Normal University:Natural Science Edition
基金
国家自然科学基金资助项目(11275052)
关键词
原子核质量
径向基函数
超重核
核天体物理
nuclear mass
radial basis function
super heavy nuclei
nuclear aserophysics