Investigation of resonance states in [superscript]11Li

Abstract

<p>Abstract: Halo nuclei, such as ¹¹Li, exhibit a unique structure characterized by a few neutrons that extend far from the core, forming a diffuse neutron halo. Understanding the resonance states in 11Li is essential for exploring its exotic structure and the dynamics of its weakly bound neutrons. This thesis investigates the resonance states of ¹¹Li using deuteron inelastic scattering experiments conducted at the IRIS facility at TRIUMF. A high-purity ¹¹Li beam, produced via the ISOL technique, was incident on a novel solid deuterium target, and the resulting reactions were analyzed using advanced silicon and CsI(Tl) detectors to measure the energies and scattering angles of the reaction products.<br />The analysis employed the missing mass technique, complemented by Monte Carlo simulations to model the experimental setup and suppress background contributions. This approach enabled the reliable identification of resonance states in ¹¹Li, particularly focusing on its low-energy excitations. The enhanced resolution and precision achieved in this study address limitations of prior experiments, providing robust measurements of resonance properties. This work represents a significant contribution to understanding the structural and dynamic properties of ¹¹Li, advancing experimental nuclear physics studies of halo nuclei.</p>