A4 Article in conference proceedings
Disentangling decaying isomers and searching for signatures of collective excitations in β decay (2020)

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., Jokinen, A., Jordan, D., Kankainen, A., Kolhinen, V., . . . Zakari-Issoufou, A.A. (2020). Disentangling decaying isomers and searching for signatures of collective excitations in β decay. In INPC2019 : 27th International Nuclear Physics Conference (Article 012134). IOP Publishing Ltd. Journal of Physics : Conference Series, 1643. https://doi.org/10.1088/1742-6596/1643/1/012134

JYU authors or editors

Publication details

All authors or editorsGuadilla, V.; Fallot, M.; Algora, A.; Tain, J. L.; Agramunt, J.; Äystö, J.; Briz, J. A.; Cucoanes, A.; Eronen, T.; Estienne, M.; et al.

Parent publicationINPC2019 : 27th International Nuclear Physics Conference

Place and date of conferenceGlasgow, United Kingdom29.7.-2.8.2019

Journal or seriesJournal of Physics : Conference Series



Publication year2020

Number in series1643

Article number012134

PublisherIOP Publishing Ltd

Publication countryUnited Kingdom

Publication languageEnglish


Publication open accessOpenly available

Publication channel open accessOpen Access channel

Publication is parallel published (JYX)https://jyx.jyu.fi/handle/123456789/73738


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.

Keywordsnuclear physicsspectroscopy

Free keywordsGamma ray spectrometers; Gamma rays; Ground state; Beta decay; Collective excitations; Gamma-ray spectroscopy; Isomeric state; Isotope-separator-on-line; Neutron-rich nuclei; Penning trap; Pygmy dipole resonances

Contributing organizations

Related projects

Ministry reportingYes

Reporting Year2020

JUFO rating1

Last updated on 2024-03-04 at 20:35