Speaker
Description
On behalf of the COLLAPS collaboration
In May 2022 high-resolution laser spectroscopy was performed on atomic tellurium species, $^{112}$Te - $^{136}$Te, using the COLLAPS experiment at ISOLDE-CERN. From the atomic hyperfine structure and isotope shifts nuclear properties like the charge radii, spins and electromagnetic moments were extracted for the ground states and long lived isomeric states. Our measurements complete the physics case Cd (Sn-2p) – Sn (Z=50) – Te (Sn+2p) and are therefore key to understand the nuclear structure in this region. In particular, the direct comparison of the quadrupole moments of the 11/2$^-$ isomeric states allow us to quantify the effects of the protons outside of the tin core. This contribution will discuss our preliminary results in the context of the nuclear shell model.
