Charge radii and electromagnetic moments of Li and Be isotopes from the ab initio no-core shell model

TL;DR

This paper uses ab initio no-core shell model calculations with high-precision nucleon-nucleon potentials to accurately predict charge radii and electromagnetic moments of Li and Be isotopes, aligning well with experimental data.

Contribution

It provides a comprehensive ab initio analysis of isotope properties, improving understanding of nuclear structure with high-precision potentials.

Findings

Charge radii and moments mostly agree with experiments

Magnetic moments are well described

Quadrupole moments are slightly underestimated

Abstract

Recently, charge radii and ground-state electromagnetic moments of Li and Be isotopes were measured precisely. We have performed large-scale ab initio no-core shell model calculations for these isotopes using high-precision nucleon-nucleon potentials. The isotopic trends of our computed charge radii and quadrupole and magnetic-dipole moments are in good agreement with experimental results with the exception of the 11Li charge radius. The magnetic moments are in particular well described, whereas the absolute magnitudes of the quadrupole moments are about 10% too small. The small magnitude of the 6Li quadrupole moment is reproduced, and with the CD-Bonn NN potential, also its correct sign.