Error estimates for the Skyrme–Hartree–Fock model. (5th February 2015)

• Record Type: Journal Article
• Authors: Erler, J; Reinhard, P-G
• Is Part Of: Journal of physics. Volume 42:Number 3(2015:Mar.)
• Publication Date: 2015-02-05
• Subjects: covariance analysis -- error estimates -- Skyrme–Hartree–Fock -- ground state properties -- neutron stars; Nuclear physics -- Periodicals; Particles (Nuclear physics) -- Periodicals; Physique nucléaire -- Périodiques; Particules (Physique nucléaire) -- Périodiques; Kernfysica; Elementaire deeltjes; 539.7
• DOI: 10.1088/0954-3899/42/3/034026
• Languages: English
• ISSNs: 0954-3899

Abstract

Abstract: There are many complementary strategies to estimate the extrapolation errors of a model calibrated in least-squares fits. We consider the Skyrme–Hartree–Fock model for nuclear structure and dynamics and exemplify the following five strategies: uncertainties from statistical analysis, covariances between observables, trends of residuals, variation of fit data, and dedicated variation of model parameters. This gives useful insight into the impact of the key fit data as they consist of binding energies, charge rms radii, and charge formfactor. Amongst others, we check in particular the predictive value for observables in the stable nucleus 208 Pb, the super-heavy element 266 Hs, r -process nuclei, and neutron stars.