Error analysis of nuclear mass fits

Details Error analysis of nuclear mass fits Error analysis of nuclear mass fits

2008-06-11

arxiv.org/abs/0806.1914v1

Phys.Rev.C78:034306,2008

Physics

Nuclear Physics

Nuclear Theory

10 RevTeX pages, 9 figures, submitted to Physical Review C

Scientific paper

10.1103/PhysRevC.78.034306

We discuss the least-square and linear-regression methods, which are relevant for a reliable determination of good nuclear-mass-model parameter sets and their errors. In this perspective, we define exact and inaccurate models and point out differences in using the standard error analyses for them. As an illustration, we use simple analytic models for nuclear binding energies and study the validity and errors of models' parameters, and uncertainties of its mass predictions. In particular, we show explicitly the influence of mass-number dependent weights on uncertainties of liquid-drop global parameters.

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