Study on deformed halo nucleus $^{31}$Ne with Glauber model based on microscopic self-consistent structures
Abstract
We study the exotic deformed nucleus Ne using an approach that combines self-consistent structure and reaction theory. We utilize the fully-relativistic, microscopic deformed Hartree-Bogoliubov theory in continuum (DRHBc) to demonstrate that deformation and pairing correlations give rise to a halo structure with large-amplitude -wave configuration in Ne. We then use the valence nucleon wave functions and angle-averaged density distributions of Ne from this model as input for a Glauber reaction model to study the observables of neutron-rich Neon isotopes and search for halo signatures. Our predictions of the reaction cross sections of these exotic Neon isotopes on a Carbon target can better reproduce the experimental data than those from relativistic mean field model for a spherical shape with resonances and pairing correlations contributions, as well as those from a Skyrme-Hartree-Fock model. The one-neutron removal cross section at 240 MeV/nucleon, the inclusive longitudinal momentum distribution of the Ne, and the valence neutron residues from the Ne breakup reaction are largely improved over previous theoretical predictions and agree well with data. These reaction data indicate a dilute density distribution in coordinate space and are a canonical signature of a halo structure.
Cite
@article{arxiv.2109.03419,
title = {Study on deformed halo nucleus $^{31}$Ne with Glauber model based on microscopic self-consistent structures},
author = {Shi-Yi Zhong and Shi-Sheng Zhang and Xiang-Xiang Sun and Michael S. Smith},
journal= {arXiv preprint arXiv:2109.03419},
year = {2021}
}