Breakup mechanisms in the 6He+64Zn reaction at near-barrier energies

TL;DR

This paper presents experimental measurements of elastic scattering for 6He on 64Zn at near-barrier energies, analyzing breakup mechanisms and comparing results with theoretical models to understand alpha particle yields.

Contribution

It provides new experimental data at multiple energies and evaluates breakup mechanisms using advanced coupled-channel models, enhancing understanding of weakly bound nucleus reactions.

Findings

Large alpha particle yields explained by nonelastic breakup

Good agreement between experimental data and coupled-reaction models

Insights into breakup processes at near-barrier energies

Abstract

New experimental results for the elastic scattering of 6He on 64Zn at incident energies of 15.0 and 18.0 MeV and 4He at 17.5 MeV along with results already published at 10.0 and 13.6 MeV, are presented. Elastic and alpha experimental cross sections are compared with coupled-reaction-channel, continuum-discretized coupledchannel, and DWBA inclusive-breakup models. The large yield of alpha particles observed at all measured energies can be explained by considering a nonelastic breakup mechanism.