Exploring the structure of $^{29}$Ne

TL;DR

This paper uses a quantum mechanical Coulomb breakup theory to analyze the structure of $^{29}$Ne, revealing a moderate halo and confirming its ground state configuration through reaction observables.

Contribution

It applies a fully quantum mechanical approach to analyze $^{29}$Ne breakup, providing detailed structural insights and confirming the ground state configuration.

Findings

Full width at half maximum of 82 MeV/c for momentum distribution matches experimental data.

Indicates a moderate halo structure in $^{29}$Ne.

No post-acceleration effects observed in the breakup process.

Abstract

We apply a fully quantum mechanical Coulomb breakup theory under the aegis of post form finite-range distorted wave Born approximation to analyze the elastic Coulomb breakup of $^{29}$Ne on $^{208}$Pb at $244$\,MeV/u. We calculate several reaction observables to quantify its structural parameters. One-neutron removal cross-section is calculated to check the consistency of the ground state configuration of $^{29}$Ne with the available experimental data. A scrutiny of the parallel momentum distribution of the charged fragment reveals a full width at half maximum of $82$\,MeV/c, which is in good agreement with the experimental value and indicates a moderate halo for a nearly spherical $^{29}$Ne in the $^{28}$Ne$(0^+) \otimes 2p_{3/2}\nu$ ground state. The energy-angular distributions and average momentum of the charged fragment point to the absence of post-acceleration effects in the breakup process, a desirable result for the elastic breakup.