Phys.Rev. C 92, 024319 (2015); Erratum Phys.Rev. C 94, 069904 (2016)

S.N.Liddick, W.B.Walters, C.J.Chiara, R.V.F.Janssens, B.Abromeit, A.Ayres, A.Bey, C.R.Bingham, M.P.Carpenter, L.Cartegni, J.Chen, H.L.Crawford, I.G.Darby, R.Grzywacz, J.Harker, C.R.Hoffman, S.Ilyushkin, F.G.Kondev, N.Larson, M.Madurga, D.Miller, S.Padgett, S.V.Paulauskas, M.M.Rajabali, K.Rykaczewski, D.Seweryniak, S.Suchyta, S.Zhu

Analogous intruder behavior near Ni, Sn, and Pb isotopes

RADIOACTIVITY ⁶⁹Fe, ⁶⁹Co, ⁶⁹Ni(β^-)[from ⁹Be(⁷⁸Kr, X), E=140 MeV/nucleon]; measured Eγ, Iγ, (ion)γ- and βγ- correlated events, half-lives of ground states of ⁶⁹Co, ⁶⁹Fe, and half-life of an isomer in ⁶⁹Co, absolute intensities of γ rays from the decay of directly produced ⁶⁹Co and that from the decay of ⁶⁹Fe using BCS system and SEGA array at NSCL-MSU facility. ⁶⁹Cu, ⁶⁹Co; deduced levels in ⁶⁹Cu, and isomer in ⁶⁹Co, J, π, intruder configuration; identified and discussed proton particle-hole intruder states originating from excitations across Z=28. ⁶⁸Fe, ⁶⁸Co(β^-); observed γ.

NUCLEAR REACTIONS ²⁰⁸Pb(⁷⁰Zn, X)⁷¹Cu, E=440 MeV; measured Eγ, Iγ, γγ-coin using Gammasphere array at ATLAS-ANL facility. ⁷¹Cu; deduced high-spin levels, J, π, band; discussed systematics of level structure and proton particle-hole intruder states in ^67,69,71Cu.

doi: 10.1103/PhysRevC.92.024319