Phys.Rev. C 108, 014304 (2023)

E.Rey-herme, A.Raggio, M.Vandebrouck, I.Moore, I.Pohjalainen, C.Delafosse, R.de Groote, Z.Ge, S.Geldhof, M.Hukkanen, A.Kankainen, A.Koszorus, D.Nesterenko, J.Saren, B.Sulignano, Ch.Theisen, D.Thisse, A.P.Weaver

Level structure of ²²¹Ac and ²¹⁷Fr from decay spectroscopy, and reflection asymmetry in ²²¹Ac

RADIOACTIVITY ²²⁵Pa(α)[from ²³²Th(p, X), E=65 MeV]; ²²¹Ac(α)[from ²²⁵Pa(α)]; measured Eα, Iα, Eγ, Iγ, Eβ, Iβ, αγ-coin, αβ-coin; deduced α-decay particle energies and intensities, hindrance factors. ²²¹Ac; deduced levels, J, π, ICC, δ, transition intensities, band structure. ²¹⁷Fr; deduced levels, J, π. Comparison between the proposed level scheme for ²²¹Ac and the level scheme of ²²³Ac. Comparison to self-consistent blocked Hartree-Fock-Bogoliubov calculations using the energy density functional SLy5s1. Ions implanted into a carbon foil surrounded by silicon and germanium detectors at the Ion Guide Isotope Separation On-Line (IGISOL) facility.

doi: 10.1103/PhysRevC.108.014304