A1 Journal article (refereed)
Level structure of 221Ac and 217Fr from decay spectroscopy, and reflection asymmetry in 221Ac (2023)

IGISOL Collaboration. (2023). Level structure of 221Ac and 217Fr from decay spectroscopy, and reflection asymmetry in 221Ac. Physical Review C, 108, Article 014304. https://doi.org/10.1103/PhysRevC.108.014304

JYU authors or editors

Publication details

All authors or editors: IGISOL Collaboration

Journal or series: Physical Review C

ISSN: 2469-9985

eISSN: 2469-9993

Publication year: 2023

Publication date: 05/07/2023

Volume: 108

Article number: 014304

Publisher: American Physical Society (APS)

Publication country: United States

Publication language: English

DOI: https://doi.org/10.1103/PhysRevC.108.014304

Publication open access: Not open

Publication channel open access: 

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/88748

Abstract

225Pa and 221Ac were produced at the IGISOL facility through proton-induced fusion-evaporation reactions and have been studied using α-particle spectroscopy, as well as α−γ and α-electron coincidence spectroscopy. The level scheme of 221Ac, daughter of 225Pa, and of 217Fr, daughter of 221Ac were reconstructed. An interpretation of 221Ac levels as K=5/2± and K=3/2± parity-doublet bands is proposed. Such bands appear in reflection-asymmetric models and would be an indication of a static reflection asymmetric shape for 221Ac.

Keywords: nuclear physics

Contributing organizations

Related projects

Ministry reporting: Yes

VIRTA submission year: 2023

JUFO rating: 2