Comparing non-perturbative models of the breakup of neutron-halo nuclei

TL;DR

This paper compares three non-perturbative theoretical models used to analyze the breakup of neutron-halo nuclei, specifically examining the breakup of 15C on Pb at different energies to evaluate their accuracy and applicability.

Contribution

It provides a systematic comparison of the continuum discretized coupled channel, time-dependent semiclassical, and dynamical eikonal models for neutron-halo breakup reactions.

Findings

All models produce consistent results for the test case.

Differences observed highlight the regimes where each model is most reliable.

The study guides the choice of theoretical approach for experimental analysis.

Abstract

Breakup reactions of loosely-bound nuclei are often used to extract structure and/or astrophysical information. Here we compare three non-perturbative reaction theories often used when analyzing breakup experiments, namely the continuum discretized coupled channel model, the time-dependent approach relying on a semiclassical approximation, and the dynamical eikonal approximation. Our test case consists of the breakup of 15C on Pb at 68 MeV/nucleon and 20 MeV/nucleon.