Phys.Rev. C 102, 044331 (2020)

S.Go, R.Grzywacz, C.Mazzocchi, S.N.Liddick, M.Alshudifat, J.C.Batchelder, T.Baumann, A.A.Ciemny, T.N.Ginter, C.J.Gross, K.Kolos, A.Korgul, S.V.Paulauskas, C.J.Prokop, M.M.Rajabali, K.P.Rykaczewski, S.Taylor, Y.Xiao

Mapping of fragmented νf_5/2 → πf_7/2 transitions in the ⁷³Co → ⁷³Ni decay

RADIOACTIVITY ^73,75Co(β^-), (β^-n)[from ⁹Be(⁸²Se, X), E=140 MeV/nucleon at NSCL-MSU, followed by separation of reaction products of interest using A1900 fragment separator, and implanted into Ge double-sided strip detector (GeDSSD)]; measured Eγ, Iγ, βγ-, γγ- and βγγ-coin, half-lives of the decays of ⁷³Co and ⁷⁵Co using eight clover Ge detectors. ^73,75Ni; deduced levels, J, π, β feedings. logft, B(GT) values, %β^-n for ⁷³Co decay. Comparison with shell-model calculations. Experimental and theoretical systematics of delayed-neutron emission probabilities (Pn) for the decays of ^{69,71,73,75,77}Co.

NUCLEAR STRUCTURE ^{69,71,73,75,77}Ni; calculated levels, J, π using fpgpn interaction with ⁴⁰Ca core, and jj44pna interaction with ⁵⁶Ni core. Comparison with experimental data.

doi: 10.1103/PhysRevC.102.044331