Investigation of resonance states in 11Li

Abstract

Understanding the structure of complex many-body nuclei is one of the central challenges in nuclear physics. The conventional shell model is capable of explaining the structure of stable nuclei, but it starts to shatter towards the driplines or rare isotopes. To explain the new trends in the shell model at the driplines, it is essential to study these exotic nuclei. Halo nuclei are prime examples of some of the unusual characteristics of rare isotopes. In this study, we investigate the resonance states in the neutron dripline nucleus ¹¹Li through the deuteron scattering. The experiment was performed at the IRIS facility at TRIUMF with an ¹¹Li beam accelerated to 7.3A MeV. The thin windowless solid deuteron target was used as a deuteron source with two different thicknesses. Together with the ground state, multiple resonances are observed at 1.06 ± 0.06 MeV, 2.29 ± 0.04 MeV and 4.01 ± 0.04 MeV.