Charge form factors of two-neutron halo nuclei in halo EFT

TL;DR

This paper develops a formalism within halo effective field theory to calculate charge form factors and radii of two-neutron halo nuclei, comparing results with experiments and analyzing dependencies on nuclear parameters.

Contribution

It introduces a new halo EFT approach for calculating charge form factors of two-neutron halo nuclei, including leading-order charge radii and their parameter dependencies.

Findings

Calculated charge form factors for known and suspected halo nuclei.

Compared theoretical charge radii with experimental data.

Analyzed how charge radius depends on core mass and separation energies.

Abstract

We set up a formalism to calculate the charge form factors of two-neutron halo nuclei with S-wave neutron-core interactions in the framework of the halo effective field theory. The method is applied to some known and suspected halo nuclei. In particular, we calculate the form factors and charge radii relative to the core to leading order in the halo EFT and compare to experiments where they are available. Moreover, we investigate the general dependence of the charge radius on the core mass and the one- and two-neutron separation energies.