Near-Far Description of Elastic and Breakup Reactions of Halo Nuclei

TL;DR

This paper analyzes elastic scattering and breakup reactions of halo nuclei using a near-far decomposition, revealing their Coulomb dominance and the influence of projectile-target interactions and halo extension.

Contribution

It introduces a near-side/far-side analysis within the dynamical eikonal approximation for halo nuclei reactions, highlighting the similarities in elastic and breakup angular distributions.

Findings

Both elastic and breakup distributions are near-side dominated.

Distributions are sensitive to projectile-target interactions and halo extension.

The link between elastic scattering and flux loss to breakup is complex.

Abstract

The angular distributions for elastic scattering and breakup of halo nuclei are analysed using a near-side/far-side decomposition within the framework of the dynamical eikonal approximation. This analysis is performed for 11Be impinging on Pb at 69AMeV. These distributions exhibit very similar features. In particular they are both near-side dominated, as expected from Coulomb-dominated reactions. The general shape of these distributions is sensitive mostly to the projectile-target interactions, but is also affected by the extension of the halo. This suggests that the link between elastic scattering and a possible loss of flux towards the breakup channel is not obvious.