Nuclear mass predictions with a radial basis function approach

作者:Wang, Ning*; Liu, Min
来源:Physical Review C, 2011, 84(5): 051303.
DOI:10.1103/PhysRevC.84.051303

摘要

With the help of the radial basis RBF) and the Garvey-Kelson relation, the accuracy and predictive power of some global nuclear mass models are significantly improved. The rms deviation between predictions from four models and 2149 known masses falls to similar to 200 keV. The AME95-03 and AME03-Border tests show that the RBF approach is a very useful tool for further improving the reliability of mass models. Simultaneously, the differences from different model predictions for unknown masses are remarkably reduced and the isospin symmetry is better represented when the RBF extrapolation is combined.