# $^9$Be scattering within a four-body continuum-discretized coupled-channels framework

## TL;DR

This paper develops a four-body CDCC approach to model $^9$Be scattering on $^{208}$Pb, accurately describing elastic and breakup channels and matching experimental data at energies near the Coulomb barrier.

## Contribution

It introduces a novel four-body CDCC framework using hyperspherical coordinates and THO basis for $^9$Be, improving the modeling of scattering processes.

## Key findings

- Good agreement with experimental data at near-barrier energies
- Accurate simultaneous description of elastic and breakup channels
- Effective use of hyperspherical THO basis for projectile states

## Abstract

The scattering of $^9$Be on $^{208}$Pb is addressed within a four-body Continuum-Discretized Coupled-Channels (CDCC) framework, considering a three-body $\alpha + \alpha + n$ projectile plus a structureless target. The projectile states are generated using the analytical Transformed Harmonic Oscillator (THO) basis in hyperspherical coordinates. Both the elastic and breakup channels are described on the same footing. We find a good agreement between our calculations and the experimental data at beam energies around and below the Coulomb barrier.