A1 Journal article (refereed)
Properties of the new α-decaying isotope 190At (2023)

Kokkonen, H., Auranen, K., Uusitalo, J., Eeckhaudt, S., Grahn, T., Greenlees, P. T., Jones, P., Julin, R., Juutinen, S., Leino, M., Leppänen, A.-P., Nyman, M., Pakarinen, J., Rahkila, P., Sarén, J., Scholey, C., Sorri, J., & Venhart, M. (2023). Properties of the new α-decaying isotope 190At. Physical Review C, 107, Article 064312. https://doi.org/10.1103/PhysRevC.107.064312

JYU authors or editors

Publication details

All authors or editors: Kokkonen, H.; Auranen, K.; Uusitalo, J.; Eeckhaudt, S.; Grahn, T.; Greenlees, P. T.; Jones, P.; Julin, R.; Juutinen, S.; Leino, M.; et al.

Journal or series: Physical Review C

ISSN: 2469-9985

eISSN: 2469-9993

Publication year: 2023

Publication date: 20/06/2023

Volume: 107

Article number: 064312

Publisher: American Physical Society (APS)

Publication country: United States

Publication language: English

DOI: https://doi.org/10.1103/PhysRevC.107.064312

Research data link: https://doi.org/10.23729/0a9fb1a9-c0e8-4f4d-8976-148cb1ef4c6a

Publication open access: Not open

Publication channel open access: 

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/88685

Abstract

The α decay of a new isotope 190At has been studied via the 109Ag(84Sr,3n)190At fusion-evaporation reaction by employing a gas-filled recoil separator. An α-particle energy of 7750(20) keV and a half-life of 1.0+1.4−0.4 ms were measured. The measured decay properties correspond to an unhindered α decay, suggesting the same spin and parity of (10−) as those of the final state of the decay. The systematics of the nearby nuclei and the predictions of selected atomic mass models were compared with the measured decay properties.

Keywords: nuclear physics

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Ministry reporting: Yes

Reporting Year: 2023

Preliminary JUFO rating: 2