Variations on a theme by Skyrme
P. Kl\"upfel, P.--G. Reinhard, T. J. B\"urvenich, J. A. Maruhn

TL;DR
This paper surveys the parameter adjustment of the Skyrme-Hartree-Fock model for nuclear structure, analyzing how different data and nuclear matter properties influence the model's predictive capabilities and uncertainties.
Contribution
It systematically evaluates the impact of various nuclear data and matter properties on Skyrme-Hartree-Fock parameterization and assesses the model's predictive uncertainties.
Findings
Ground-state data allow broad parameter choices.
Giant resonances help constrain model parameters.
Uncertainties vary depending on the observable.
Abstract
We present a survey of the phenomenological adjustment of the parameters of the Skyrme-Hartree-Fock (SHF) model for a self-consistent description of nuclear structure and low-energy excitations. A large sample of reliable input data from nuclear bulk properties (energy, radii, surface thickness) is selected guided by the criterion that ground-state correlations should remain small. Least squares fitting techniques are used to determine the SHF parameters which accommodate best the given input data. The question of the predictive value of the adjustment is scrutinized by performing systematic variations with respect to chosen nuclear matter properties (incompressibility, effective mass, symmetry energy, and sum-rule enhancement factor). We find that the ground-state data, although representing a large sample, leave a broad range of choices, i.e. a broad range of nuclear matter…
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Taxonomy
TopicsNuclear physics research studies · Quantum Chromodynamics and Particle Interactions · Pulsars and Gravitational Waves Research
