Phys.Rev. C 98, 064326 (2018)

M.Stryjczyk, Y.Tsunoda, I.G.Darby, H.De Witte, J.Diriken, D.V.Fedorov, V.N.Fedosseev, L.M.Fraile, M.Huyse, U.Koster, B.A.Marsh, T.Otsuka, D.Pauwels, L.Popescu, D.Radulov, M.D.Seliverstov, A.M.Sjodin, P.Van den Bergh, P.Van Duppen, M.Venhart, W.B.Walters, K.Wimmer

β^-decay study of the ⁶⁶Mn - ⁶⁶Fe - ⁶⁶Co - ⁶⁶Ni decay chain

RADIOACTIVITY ⁶⁶Mn(β^-), (β^-n)[from U(p, F), Mn beam purified by laser resonance ionization and mass separation]; ⁶⁶Fe(β^-)[from ⁶⁶Mn β^- decay]; ⁶⁶Co(β^-)[from ⁶⁶Fe β^- decay]; measured Eβ, Iβ, Eγ, Iγ, half-lives of β-decaying ⁶⁶Mn, ⁶⁶Fe, ⁶⁶Co, γγ- and βγγ-coin, half-lives of isomers in ⁶⁵Fe, ⁶⁶Co by γ(t) using plastic scintillators for β detection and MiniBall cluster Ge detectors for γ detection at ISOLDE-CERN. ^65,66Fe, ⁶⁶Co, ⁶⁶Ni; deduced levels, isomers, J, π, β feedings, logft, B(GT) values, %β^-n value for the decay of ⁶⁶Mn. Comparison with Monte Carlo shell model calculations.

NUCLEAR STRUCTURE ⁶⁶Mn, ⁶⁶Fe, ⁶⁶Co, ⁶⁶Ni; calculated average proton and neutron occupation numbers for selected low-lying positive-parity states, potential energy surface (PES) in (Q₀, Q₂) plane, levels, J, π, B(M1), B(E2) using Monte Carlo Shell model with the A3DA interactions. Comparison with experimental data.

doi: 10.1103/PhysRevC.98.064326