The $^{19}$N($n$,$\gamma)^{20}$N capture rate in light of the probable bubble nature of $^{20}$N

TL;DR

This paper investigates the potential bubble structure of the exotic nucleus $^{20}$N using microscopic AMD methods and estimates its neutron capture rate through Coulomb breakup analysis.

Contribution

It introduces a novel combination of AMD and finite-range DWBA to study the structure and capture rate of $^{20}$N, highlighting its bubble nature.

Findings

Analysis supports the bubble structure hypothesis for $^{20}$N.

Calculated capture rates provide new insights into neutron capture processes.

Methodology offers a new indirect way to estimate capture rates for exotic nuclei.

Abstract

We aim to explore the bubble nature of the exotic nucleus $^{20}$N within the microscopic antisymmetrized molecular dynamics (AMD) approach. Constraining its structural parameters, we analyse its static properties. Subsequently, we use the AMD infused finite-range distorted-wave Born approximation theory to calculate the Coulomb breakup of $^{20}$N as an indirect approach to estimate the $^{19}$N$(n,\gamma)^{20}$N radiative capture rate.