Phys.Rev. C 102, 014316 (2020)

D.Rudolph, I.Ragnarsson, C.Andreoiu, M.A.Bentley, M.P.Carpenter, R.J.Charity, R.M.Clark, J.Ekman, C.Fahlander, P.Fallon, W.Reviol, D.G.Sarantites, D.Seweryniak

Single-particle and collective excitations in the N=28 isotones ⁵⁴Fe and ⁵³Mn

NUCLEAR REACTIONS ²⁸Si(³²S, 3pα)⁵³Mn, (³²S, 2pα)⁵⁴Fe, E=125 MeV; measured Eγ, Iγ, E(n), (particle)γ- and γγ-coin, γγ(θ)(DCO) using the Gammasphere array for γ detection, 4π Microball system for charged particle detection, and the Neutron Shell for neutron detection at ANL-ATLAS and LBNL facilities. ⁵³Mn, ⁵⁴Fe; deduced high-spin levels, J, π, multipolarities, band structures, alignments and configurations. Comparison with cranked Nilsson-Strutinsky calculations, and with large-scale shell model calculations in the fp shell with GXPF1A and KB3G interactions and isospin breaking terms.

doi: 10.1103/PhysRevC.102.014316