New upper limits for β -delayed fission probabilities of Fr 230,232 and Ac 230,232,234 KU Leuven
The process of β-delayed fission (βDF) of Fr230,232 and Ac230,232,234 was studied in an experiment performed at the ISOLDE facility at CERN. As no fission fragments were observed for any of the nuclei investigated, upper limits for their βDF probability (PβDF) were determined. The experimental results were compared with theoretical calculations that were first benchmarked on Tl178,180PβDF experimental values. The PβDF values were calculated ...