径向基函数方法在原子核质量预言中的应用

Application of Radial Basis Function Approach on Nuclear Mass Predictions

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.