$^7$H ground state as a $^3$H+4n resonance
Abstract
We have investigated the possible existence of a H resonant state, considered as a five-body system consisting of a H core with four valence neutrons. To this aim, an effective n-H potential is constructed in order to reproduce the low energy elastic neutron scattering on H phase shifts and the H resonant ground state in terms of H-n-n system. The variational Gaussian Expansion Method is used to solve the 5-body Schr\"{o}dinger equation, while the resonant state parameters were estimated by means of the stabilization method. We have not found any sign of a narrow low energy resonance in the vicinity of H+4n threshold. However, we have identified a very broad structure at MeV above this threshold, which corresponds to the H J=1/2 ground state. In the vicinity of this state, we have also identified a broad structure corresponding to the ground state of H isotope with quantum numbers .
Keywords
Cite
@article{arxiv.2207.04634,
title = {$^7$H ground state as a $^3$H+4n resonance},
author = {Emiko Hiyama and Rimantas Lazauskas and Jaume Carbonell},
journal= {arXiv preprint arXiv:2207.04634},
year = {2022}
}
Comments
15 pages, 9 figures