Phys.Rev. C 104, 054314 (2021)

A.Chester, B.A.Brown, S.P.Burcher, M.P.Carpenter, J.J.Carroll, C.J.Chiara, P.A.Copp, B.P.Crider, J.T.Harke, D.E.M.Hoff, K.Kolos, S.N.Liddick, B.Longfellow, M.J.Mogannam, T.H.Ogunbeku, C.J.Prokop, D.Rhodes, A.L.Richard, O.A.Shehu, A.S.Tamashiro, R.Unz, Y.Xiao

Identification of a new isomeric state in ⁷⁶Zn following the β decay of ⁷⁶Cu

RADIOACTIVITY ⁷⁶Cu(β^-)[from ⁹Be(⁸⁶Kr, X), E=140 MeV/nucleon, followed by separation of fragments of interest using A1900 fragment separator at NSCL-MSU facility]; measured reaction products, particle identification plot of ions implanted in CeBr₃ detector, Eγ, Iγ, (⁷⁶Cu implants)γ-coin, γγ-coin, T_1/2 of a nanosecond isomer by fast timing method using an array of 16 HPGe clover detectors and 15 LaBr₃ detectors. ⁷⁶Zn; deduced levels, J, π, new isomer, Comparison with shell-model calculations.

NUCLEAR STRUCTURE ⁷⁶Zn; calculated levels, J, π, level T_1/2, isomers, proton and neutron occupancy numbers of negative-parity isomeric states using shell model with jj4b, jj4c and JUN45 interactions. Comparison with experimental data.

doi: 10.1103/PhysRevC.104.054314