Role of Higher Multipole Excitations in the Electromagnetic Dissociation of One Neutron Halo Nuclei

TL;DR

This paper explores how higher multipole excitations influence the electromagnetic breakup of one-neutron halo nuclei, comparing two theoretical models and examining the impact of weakly bound states on the process.

Contribution

It introduces a comparative analysis of two theoretical approaches to electromagnetic dissociation and highlights the effect of weakly bound states on breakup cross sections.

Findings

Higher multipole excitations significantly affect dissociation cross sections.

Weakly bound states enhance breakup probabilities.

Comparison reveals differences between models in predicting dissociation outcomes.

Abstract

We investigate the role of higher multipole excitations in the electromagnetic dissociation of one-neutron halo nuclei within two different theoretical models -- a finite range distorted wave Born approximation and another in a more analytical method with a finite range potential. We also show, within a simple picture, how the presence of a weakly bound state affects the breakup cross section.