English

One-neutron halo structure of $^{29}$Ne

Nuclear Theory 2022-06-09 v1 Nuclear Experiment

Abstract

We have applied the Gamow shell model to calculate nuclear observables of 2631^{26-31}Ne isotopes pertaining to one-neutron halo structure, these nuclei being situated close to neutron drip-line. As both many-body correlations and continuum coupling are taken into account in that approach, halo structure can be analyzed properly. Our calculations provide good descriptions of 2631^{26-31}Ne, where asymptotic behavior is crucial for that matter. One-body density, neutron root-mean-square radii of 2631^{26-31}Ne, and one-neutron overlap functions of 29,31^{29,31}Ne have been calculated as well. Our results support the presence of a one-neutron \textit{p}-wave halo in 31^{31}Ne, already pointed out experimentally. A similar situation also occurs in the ground state of 29^{29}Ne, which is mainly a \textit{p}-wave valence neutron coupled to the inner 28^{28}Ne \textit{core}. The 3/2+3/2^+ excited state of 29^{29}Ne, which is dominated by a \textit{d}-wave valence neutron, has also been considered. A larger radius and more extended wave function occur for the ground state of 29^{29}Ne when compared to its 3/2+3/2^+ first excited state. The present results suggest that 29^{29}Ne is a good candidate for one-neutron \textit{p}-wave halo in the medium-mass region.

Keywords

Cite

@article{arxiv.2206.03765,
  title  = {One-neutron halo structure of $^{29}$Ne},
  author = {J. G. Li and N. Michel and H. H. Li and W. Zuo},
  journal= {arXiv preprint arXiv:2206.03765},
  year   = {2022}
}

Comments

7 Pages, 3 Figures