Three beta-decaying states in 128In and 130In resolved for the first time using Penning-trap techniques
Nesterenko, D.A., Kankainen, A., Kostensalo, J., Nobs, C.R., Bruce, A.M., Beliuskina, O., Canete, L., Eronen, T., Gamba, E.R., Geldhof, S., de Groote, R., Jokinen, A., Kurpeta, J., Moore, I.D., Morrison, L., Podolyák, Zs., Pohjalainen, I., Rinta-Antila, S., de Roubin, A., . . . Äystö, J. (2020). Three beta-decaying states in 128In and 130In resolved for the first time using Penning-trap techniques. Physics Letters B, 808, Article 135642. https://doi.org/10.1016/j.physletb.2020.135642
Julkaistu sarjassa
Physics Letters BTekijät
Päivämäärä
2020Tekijänoikeudet
© 2020 The Author(s). Published by Elsevier B.V.
Isomeric states in 128In and 130In have been studied with the JYFLTRAP Penning trap at the IGISOL facility. By employing state-of-the-art ion manipulation techniques, three different beta-decaying states in 128In and 130In have been separated and their masses measured. JYFLTRAP was also used to select the ions of interest for identification at a post-trap decay spectroscopy station. A new beta-decaying high-spin isomer feeding the 15− isomer in 128Sn has been discovered in 128In at 1797.6(20) keV. Shell-model calculations employing a CD-Bonn potential re-normalized with the perturbative G-matrix approach suggest this new isomer to be a 16+ spin-trap isomer. In 130In, the lowest-lying (10−) isomeric state at 58.6(82) keV was resolved for the first time using the phase-imaging ion cyclotron resonance technique. The energy difference between the 10− and 1− states in 130In, stemming from parallel/antiparallel coupling of (π0g9/2−1)⊗(ν0h11/2−1), has been found to be around 200 keV lower than predicted by the shell model. Precise information on the energies of the excited states determined in this work is crucial for producing new improved effective interactions for the nuclear shell model description of nuclei near 132Sn.
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Julkaisija
Elsevier BVISSN Hae Julkaisufoorumista
0370-2693Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/41659185
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Rahoittaja(t)
Suomen Akatemia; Euroopan komissioRahoitusohjelmat(t)
Akatemiatutkijan tutkimuskulut, SA; Akatemiatutkija, SA
The content of the publication reflects only the author’s view. The funder is not responsible for any use that may be made of the information it contains.
Lisätietoja rahoituksesta
This work has been supported by the EU Horizon 2020 research and innovation program under grant No. 771036 (ERC CoG MAIDEN). The support from the Academy of Finland under the Finnish Centre of Excellence Programme 2012-2017 (Nuclear and Accelerator Based Physics Research at JYFL) and projects No. 306980, 312544, 275389, 284516, 295207 is gratefully acknowledged. UK authors were supported by STFC Grant Nos. ST/L005840/1, ST/P003982/1 and ST/P005314/1. ...Lisenssi
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