Self-consistent description of the halo nature of 31Ne with continuum and pairing correlations

TL;DR

This paper presents a comprehensive model combining continuum and pairing effects to accurately describe the halo structure of 31Ne, aligning well with experimental reaction cross sections and momentum distributions.

Contribution

It introduces a self-consistent approach integrating pairing and continuum contributions within a microscopic structure model for halo nuclei.

Findings

Predicted reaction cross sections match experimental data.

Confirmed the halo nature of 31Ne through momentum distribution analysis.

Enhanced understanding of the density distribution in 31Ne.

Abstract

Using a Glauber model with our relativistic fully microscopic structure model input, we give a full description of the halo nature of 31Ne that includes a self-consistent use of pairing and continuum contributions that makes predictions consistent with reaction cross section measurements. Our predictions of total reaction and one-neutron removal cross sections of 31Ne on a Carbon target were significantly enhanced compared with those of neighboring Neon isotopes, agreeing well with measurements at 240 MeV/nucleon and consistent with a single neutron halo. Furthermore, our calculations of the inclusive longitudinal momentum distribution of the 30Ne and valence neutron residues from the 31Ne breakup reaction indicate a dilute density distribution in coordinate space, another halo signature.