One- and two- neutron halo at the dripline. From 11Be to 11Li and back: 10Li and parity inversion

TL;DR

This paper investigates one- and two-neutron halo nuclei, specifically 11Be and 11Li, using nuclear reaction theory to understand their structure and the parity inversion phenomenon in 10Li.

Contribution

It applies a nuclear field theory approach to analyze transfer reactions, providing new insights into the structure of 10Li and confirming the parity inversion scenario.

Findings

Support for a parity inverted 1/2+ virtual state in 10Li

Successful description of transfer reactions involving halo nuclei

Enhanced understanding of neutron halo structures at the dripline

Abstract

The nuclei 11Be and 11Li provide paradigmatic examples of one-and two- neutron halo systems. Because the reaction 1H(11Li,9Li)3H is dominated by successive transfer, one can use the quantitative picture emerging from a nu- clear field theory description of the structure and reaction mechanism of the above Cooper pair transfer process and of the 2H(10Be,11Be)1H and 1H(11Be,10Be)2H reactions, to shed light on the structure of 10Li. This analysis provides important support for a parity inverted scenario with a 1/2+ virtual state at about 0.2 MeV.