β-decay studies in the 220

Abstract

The experimental study presented in this work aims at providing new inputs to the knowledge of β decay in the 220<A<230 n-rich region.A systematic description of β decay in this region would be useful to probe the predictions of global nuclear models in exotic nuclei beyond N= 126, as an input to models describing r-process nucleosynthesis. The region mentioned is also one of the regions in the nuclear chart where the strongest octupole deformations are supposed to be found, and were measured experimentally in recent years in few selected cases.This work focuses on preliminary results on an experiment performed by the HISPEC-DESPEC collaboration as a part of the FAIR-0 campaing in April 2021. β-decay half lives and γ-ray spectra studies are presented.