Charge radii and neutron correlations in helium halo nuclei
Nuclear Theory
2015-05-30 v2 Nuclear Experiment
Abstract
Within the complex-energy configuration interaction framework, we study correlations of valence neutrons to explain the behavior of charge radii in the neutron halo nuclei He. We find that the experimentally observed decrease of the charge radius between He and He is caused by a subtle interplay between three effects: dineutron correlations, a spin-orbit contribution to the charge radius, and a core swelling effect. We demonstrate that two-neutron angular correlations in the resonance of He differ markedly from the ground-state correlations in He.
Keywords
Cite
@article{arxiv.1109.0223,
title = {Charge radii and neutron correlations in helium halo nuclei},
author = {G. Papadimitriou and A. T. Kruppa and N. Michel and W. Nazarewicz and M. Płoszajczak and J. Rotureau},
journal= {arXiv preprint arXiv:1109.0223},
year = {2015}
}
Comments
5 pages, 5 figures