PhD Final seminar by Ebba Ahlgren Cederlöf

by Mrs Ebba Ahlgren Cederlöf (Uppsala University / KTH)

Thursday 23 Oct 2025, 10:30 → 12:30 Europe/Stockholm

106130 (Ångströmlaboratoriet)

From ideal vibrations to possible anomalies - Insights from tellurium lifetime measurements and modelling

 

 

More than a century since its discovery, the quest for a complete understanding of the structure of the atomic nucleus remains one of the central challenges in nuclear physics. Lifetime measurements of excited states in the nucleus offer a way of probing this inner structure. The tellurium isotopic chain has been considered an ideal testing ground for studying nuclear vibrations, where the nucleus behaves analogous to a vibrating drop of liquid. However, key data points, both near the midshell region and towards the most neutron-deficient Te nuclei, have been missing in order to study the evolution of structure across the isotopic chain. In this presentation I will present the results from my doctoral thesis, focused on lifetime measurements in both even-A (¹⁰⁸Te, ¹¹⁸Te) and odd-A (¹¹⁷Te, ¹¹⁹Te) tellurium isotopes, and interpret them using theoretical models. I will show examples of near ideal vibrational behaviour, as well as examples of unexplained anomalities.