Orateur
Description
A fundamental open question in modern nuclear physics relates to the persistence of shell closures far from stability. Improvements in the capability of radioactive beam facilities, has allowed access to rare isotopes and enabled techniques with higher precision to be used. This has shown that in several regions of the nuclear chart there are surprising and dramatic changes in nuclear structure from previous theoretical predictions. These changes arise from the interplay between the central and tensor components of the nucleon-nucleon interaction. A key region of the nuclear chart to test the latest theoretical developments is around the $^{100}$Sn and $^{132}$Sn double magic nuclei. Measurement of the spins and nuclear moments in this region provides theory with robust observables to understand the underlying nuclear interactions. This has motivated a series of high-resolution laser spectroscopy experiments that have studied the isotope chains in the tin region. This talk will present the latest results and interpretation of this ongoing programme of work.