Are there good probes for the di-neutron correlation in light neutron-rich nuclei?

TL;DR

This paper explores potential experimental methods such as Coulomb breakup, pair transfer reactions, and direct two-neutron decays to detect di-neutron correlations in light neutron-rich nuclei.

Contribution

It evaluates various experimental probes for identifying di-neutron correlations, providing insights into their effectiveness and feasibility.

Findings

Coulomb breakup can reveal di-neutron correlations.

Pair transfer reactions are sensitive to neutron pairing.

Direct two-neutron decay offers direct evidence of di-neutron structures.

Abstract

The di-neutron correlation is a spatial correlation with which two valence neutrons are located at a similar position inside a nucleus. We discuss possible experimental probes for the di-neutron correlation. This includes the Coulomb breakup and the pair transfer reactions of neutron-rich nuclei, and the direct two-neutron decays of nuclei beyond the neutron drip-line.