Disentangling decaying isomers and searching for signatures of collective excitations in β decay
Guadilla, V.; Fallot, M.; Algora, A.; Tain, J. L.; Agramunt, J.; Äystö, J.; Briz, J. A.; Cucoanes, A.; Eronen, T.; Estienne, M.; Fraile, L. M.; Ganioǧlu, E.; Gelletly, W.; Gorelov, D.; Hakala, J. et al. (2020). Disentangling decaying isomers and searching for signatures of collective excitations in β decay. In INPC2019 : 27th International Nuclear Physics Conference (Journal of Physics : Conference Series, 1643. IOP Publishing Ltd, 012134. DOI: 10.1088/1742-6596/1643/1/012134
Published inJournal of Physics : Conference Series
Voss, A. |
© Authors, 2020
In this contribution we summarize the recent study of the β decay of neutron-rich nuclei with isomeric states close in energy to the ground states. The disentanglement of each pair of β-decaying states was achieved by applying different strategies and using the purification capabilities of the JYFLTRAP double Penning trap system at the Ion Guide Isotope Separator On-Line facility in Jyvaskyla. The Total Absorption γ-ray Spectroscopy technique was employed to determine the β intensity probabilities populating the excited states in the daughter nuclei. Previously undetected β intensity was found and we have already evaluated the impact of part of these results on reactor summation calculations. The possibility to populate states associated with the Pygmy Dipole Resonance in the β decay of 96gsY has also been investigated thanks to the sensitivity of our technique to high-lying strength in the daughter nuclei.
PublisherIOP Publishing Ltd
ConferenceInternational Nuclear Physics Conference
Is part of publicationINPC2019 : 27th International Nuclear Physics Conference
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Related funder(s)European Commission
Funding program(s)FP7 (EU's 7th Framework Programme)
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