Quantifying statistical uncertainties in ab initio nuclear physics using Lagrange multipliers
Artikel i vetenskaplig tidskrift, 2017

Theoretical predictions need quantified uncertainties for a meaningful comparison to experimental results. This is an idea which presently permeates the field of theoretical nuclear physics. In light of the recent progress in estimating theoretical uncertainties in ab initio nuclear physics, I here present and compare methods for evaluating the statistical part of the uncertainties. A special focus is put on the (for the field) novel method of Lagrange multipliers (LM). Uncertainties from the fit of the nuclear interaction to experimental data are propagated to a few observables in light-mass nuclei to highlight any differences between the presented methods. The main conclusion is that the LM method is more robust, while covariance-based methods are less demanding in their evaluation.

Författare

Boris Karlsson

Chalmers, Fysik, Subatomär fysik och plasmafysik

Physical Review C - Nuclear Physics

0556-2813 (ISSN) 1089-490X (eISSN)

Vol. 95 3 034002-

Ämneskategorier

Subatomär fysik

Fundament

Grundläggande vetenskaper

DOI

10.1103/PhysRevC.95.034002

Mer information

Skapat

2017-10-08