4 papers
High-Precision Ab Initio Radius Calculations of Boron Isotopes
Tobias Wolfgruber, Tobias Gesser, Marco Knöll +2
We perform a precision study of radii in Boron isotopes for multiple realistic interactions from chiral effective field theory. We obtain predictions of radii with combined many-bo…
Benchmarking ANN extrapolations of the ground-state energies and radii of Li isotopes
Marco Knöll, Matthew Lockner, Pieter Maris +4
We present a comparison of model-space extrapolation methods for No-Core Shell Model calculations of ground-state energies and root-mean-square radii in Li isotopes. In particular,…
Robust ab initio predictions for dimensionless ratios of E2 and radius observables. II. Estimation of E2 transition strengths by calibration to the charge radius
Mark A. Caprio, Patrick J. Fasano, Pieter Maris
Converged results for E2 observables are notoriously challenging to obtain in ab initio no-core configuration interaction (NCCI) approaches. Matrix elements of the E2 operator are…
Machine Learning for Correlations of Electromagnetic Properties in Ab Initio Calculations
Marco Knöll, Marc L. Agel, Tobias Wolfgruber +2
In ab initio nuclear structure theory, accurately predicting electromagnetic observables, such as moments and transition rates, is essential for a comprehensive understanding of nu…